This Morning from CBS News, March 14, 2016
Magic number
Tuesday's primaries in five states will provide the clearest clues yet as to whether Donald Trump can secure the Republican nomination outright, and to the other candidates' paths forward. We look at how the candidates can reach the crucial 1,237 delegates -- or at least stop Trump getting there first.
Disaster area
More than 17 million people are facing a severe weather threat as storm systems target the Northeast and the South. Flooding has claimed at least six lives already in the South -- four of them in Louisiana. President Obama has issued a disaster declaration for the area, where some levees are at serious risk.
ISIS defector?
Kurdish media are reporting that members of the Kurdish peshmerga force in northern Iraq have detained an apparent American ISIS defector as he tried to make his way back to Turkey. Video posted online shows a young man identifying himself as a U.S. national from Virginia.
"Aid in dying"
Brittany Maynard was dying of brain cancer when she decided to drink a lethal prescription to end her life. She was just 29 years old. Her decision made her a symbol in the debate about how much we should be able to control the time and manner of our own death.
Spring sneeze
If you feel like spring allergies are coming on early this year, you're not alone. A number of places around the country have seen a surge in tree pollen that can set off sniffling and sneezing in millions of people. We ask allergy experts what you can do to avoid the worst of it.
Sleepy teens
Many Americans say they don't get enough sleep, especially teenagers. Now Stanford University is teaching high school students to become "sleep ambassadors." The unique course is designed to help spread the word on the health risks associated with sleep deprivation.
Supercomputers
We get a first look at the National Weather Service's powerful new supercomputers -- part of an almost-$45 million project to boost the country's forecasting capabilities. NOAA says the upgraded system provided early warnings of the recent storms in the South.
Pricier petroleum?
The long-battered price of oil has edged up lately, buoying the stock market. So, oil's long descent is over and things are returning to normal, right? Not quite. Considerable obstacles remain, and the current price rebound could be what Wall Street types call a "dead cat bounce."
More top news:
U.S.
Dozens hurt in Kansas Amtrak train derailment
Kentucky man dies after officers use stun gun on him
2nd tugboat crew member's body pulled from Hudson River
World
As toll mounts from Ankara blasts, Turkey seeks revenge
Tens of thousands protest, demand Brazil's president go
Al Qaeda claims assault on Ivory Coast beach resort
Politics
Upheaval at news website over dustup with Trump campaign
Mitt Romney to campaign with Kasich in Ohio
Trump threatens to set supporters on Sanders rallies
Sanders on campaign violence: "That's not what we do"
Business
The 10 strangest home gadgets of 2016
What to look for at this week's Fed meeting
Tiffany or Dollar General: Which stock to buy?
Science and tech
Privacy vs. security: The great encryption debate