Legalize it: "Patent troll" lawsuits slow the economy, squash innovation

IRS official Lois Lerner -- who broke the scandal that her division singled out conservative groups for scrutiny -- is likely to invoke her Fifth Amendment right and refuse to answer questions at a House committee hearing. CBS News' Nancy Cordes reports.

The National Weather Service says the tornado that devastated Oklahoma had winds above 200 miles per hour. The death toll stands at 24, including nine children. "CBS This Morning" co-host Norah O'Donnell reports from Moore, Okla.

The Washington Post says ex-CIA director David Petraeus played a role in the controversy over the early talking points for administration officials regarding the Benghazi, Libya, attacks. A review of e-mails shows Petraeus fought to keep information in the talking points that was favorable to his image and his agency. Charlie Rose reports.

The FBI says it was involved in a fatal shooting near Universal Studios in Orlando, Fla. CBS News senior correspondent John Miller tells "CTM" co-host Charlie Rose the victim was a friend of Tamerlan Tsarnaev, the older brother suspected in the Boston Marathon bombing.

CBS News' Mark Strassmann reports what he's seen amid the devastation in Moore, Okla.

Amid the rubble, families spoke to CBS News' Jeff Glor about the difficult decisions they had to make as the massive tornado struck Moore -- and the challenges they will confront as they take on the huge task of rebuilding.