Clashes between pro-Russia and pro-Western demonstrators turned deadly in the eastern city of Donetsk. The clashes raised concern that Russian President Vladimir Putin will use rising violence as a reason to expand his troop presence into the region

Clashes between pro-Russia and pro-Western demonstrators turned deadly in the eastern city of Donetsk. The clashes raised concern that Russian President Vladimir Putin will use rising violence as a reason to expand his troop presence into the region beyond Crimea. Charlie D’Agata reports.

• Mar 13, 2014

Secretary of state says Russia has approximately 20,000 troops in Ukraine's Crimean peninsula - not enough to "march in and take over all of Ukraine, but that could change very quickly"

Secretary of State John Kerry says Russia has approximately 20,000 troops in Ukraine's Crimean peninsula - not enough to "march in and take over all of Ukraine, but that could change very quickly."

• Mar 13, 2014

Secretary of State John Kerry is expected tell Russia's top diplomat that their military must pull back from Crimea or face harsh sanctions

Secretary of State John Kerry is expected tell Russia's top diplomat that their military must pull back from Crimea or face harsh sanctions. CBS News State Department correspondent Margaret Brennan reports.

• Mar 13, 2014

President Obama warns Russia that the U.S. and other nations will be forced to "apply a cost" if Russia persists in meddling within Ukraine

President Obama warns Russia that the U.S. and other nations will be forced to "apply a cost" if Russia persists in meddling within Ukraine.

• Mar 12, 2014

John Brennan says Russia’s military intervention in Crimea presents a moment for all parties involved to avoid provocations that could lead to bloodshed

John Brennan says Russia’s military intervention in Crimea presents a moment for all parties involved to avoid provocations that could lead to bloodshed.

• Mar 11, 2014

In Crimea, Pro-Russian residents are ready for the crucial weekend secession vote

In Crimea, Pro-Russian residents are ready for the crucial weekend secession vote. CBS News' Elizabeth Palmer reports the latest.

• Mar 11, 2014

A look back at what we've been covering on “CBS This Morning"

A look back at what we've been covering on “CBS This Morning.”

• Mar 11, 2014

Crimea is preparing for a referendum that could determine whether or not it remains part of Ukraine

Crimea is preparing for a referendum that could determine whether or not it remains part of Ukraine. With Russian forces firmly in control of Crimea's border posts, many Crimeans believe the country would be better off if Russia controlled it. Elizabeth Palmer reports.

• Mar 10, 2014

NSA leaker says makers, thinkers, development community can craft solutions to ensure data safety

During a videoconference at the 2014 South by Southwest Interactive Festival, NSA leaker Edward Snowden says that those in the tech development community are better suited to keep the public's data safe than the people in Washington.

• Mar 10, 2014

NSA leaker discusses importance of data encryption

Former NSA contractor turned whistleblower Edward Snowden addresses the importance of data encryption during a videoconference at the 2014 South by Southwest Interactive Festival.

• Mar 10, 2014

NSA leaker discusses whether he feels his actions were worth the price he paid

During a videoconference at the 2014 South by Southwest Interactive Festival, NSA leaker Edward Snowden discusses whether he feels his actions were worth the price he paid.

• Mar 10, 2014

With less than a week to Crimea's referendum, Crimeans who want to join Russia are expecting a victory

With less than a week to Crimea's referendum, Crimeans who want to join Russia are expecting a victory. But the U.S. and European allies say the Russian invasion was illegal. CBS News' Elizabeth Palmer reports from Crimea.

• Mar 10, 2014

With a referendum on joining the Russian Federation a week away, Russian forces continued to tighten their grip on Crimea. Many in Crimea support joining Russia, but not all do, and the issue has caused a bitter split between supporters and opponents

With a referendum on joining the Russian Federation a week away, Russian forces continued to tighten their grip on Crimea. Many in Crimea support joining Russia, but not all do, and the issue has caused a bitter split between supporters and opponents. Elizabeth Palmer reports.

• Mar 9, 2014

In this week's 60 Minutes Moment of the Week, Billionaire Petro Poroshenko, a financial backer of Ukraine's revolution, says the U.S. should be ready to take action against Russia

In this week's 60 Minutes Moment of the Week, Billionaire Petro Poroshenko, a financial backer of Ukraine's revolution, says the U.S. should be ready to take action against Russia

• Mar 9, 2014

Miss the second half of the show? The latest on the disappearance of Malaysia Airlines flight 370, the crisis in Ukraine, and a panel of experts

Miss the second half of the show? The latest on the disappearance of Malaysia Airlines flight 370, the crisis in Ukraine, and a panel of experts.

• Mar 9, 2014

Former Secretary of State James Baker discusses the crisis in Ukraine and how President Obama is viewed by the Russians

Former Secretary of State James Baker discusses the crisis in Ukraine and how President Obama is viewed by the Russians.

• Mar 9, 2014

Rich Lowry, Peter Baker, Jeffrey Goldberg, and CBS News' Margaret Brennan discuss the potential fallout from Russia's incursion into Ukraine

Rich Lowry, Peter Baker, Jeffrey Goldberg, and CBS News' Margaret Brennan discuss the potential fallout from Russia's incursion into Ukraine

• Mar 9, 2014

Former Vice President Dick Cheney discusses the ongoing crisis in Ukraine and the Obama administration's response

Former Vice President Dick Cheney discusses the ongoing crisis in Ukraine and the Obama administration's response.

• Mar 9, 2014

President Obama's former national security adviser advises prudence and consideration in dealing with the crisis in Ukraine

President Obama's former national security adviser advises prudence and consideration in dealing with the crisis in Ukraine.

• Mar 9, 2014

The latest on the disappearance of Malaysia Airlines flight 370, the crisis in Ukraine, and politics back home

The latest on the disappearance of Malaysia Airlines flight 370, the crisis in Ukraine, and politics back home with former Vice President Dick Cheney, Rep. Paul Ryan, R-Wisc., former Secretary of State James Baker, and more

• Mar 9, 2014

Pro-Russian forces confronted an unarmed team of international observers at the Crimean border. Russia says they won't annex Crimea, but men were seen digging holes at the border, perhaps to build a border fence

Pro-Russian forces confronted an unarmed team of international observers at the Crimean border. Russia says they won't annex Crimea, but men were seen digging holes at the border, perhaps to build a border fence for a territory that may soon be part of the Russian Federation. Elizabeth Palmer reports.

• Mar 8, 2014

The Winter Paralympics are under way in Sochi, Russia.

The Winter Paralympics are under way in Sochi, Russia. Russian President Vladimir Putin opened the Games with a ceremony that saw only one member of Ukraine's 31-member delegation attend.

• Mar 8, 2014

Russia's Parliament is encouraging voters in Crimea to support secession. Ukraine's foreign minister says that it would not give up Crimea

Russia's Parliament is encouraging voters in Crimea to support secession. Ukraine's foreign minister says that it would not give up Crimea. And as Charlie D'Agata explains, Russia is ramping up its military presence.

• Mar 8, 2014

The White House says it is examining sanctions as a response to the Russian military presence in the Crime

The White House says it is examining sanctions as a response to the Russian military presence in the Crimea. But will they work? CBS News National Security Analyst Juan Zarate joins "CBS This Morning: Saturday" for a discussion on whether sanctions against Russia could be effective.

• Mar 8, 2014

Russia’s parliament voted to accept Crimea into the Russian Federation if residents there vote to leave Ukraine. Meanwhile, pro-Russian militias set up roadblocks at the Crimean border with Ukraine.

Russia’s parliament voted to accept Crimea into the Russian Federation if residents there vote to leave Ukraine. Meanwhile, pro-Russian militias set up roadblocks at the Crimean border with Ukraine, barring international monitors from entering. Local media have also been censored. Elizabeth Palmer reports.

• Mar 7, 2014

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