Breaking News from CBS

• Video: Moore fire chief: Larger casualty tornado than we've ever had

  Moore, Okla. fire chief Gary Bird has overseen recovery in the city of Moore through devastating and historic tornadoes. He speaks to the "CBS This Morning" co-hosts about current weather conditions in Moore and the continued search and rescue effort.

• Video: Oklahoma gov: "Incredible" if anybody survives in collapsed buildings

  Oklahoma Gov. Mary Fallin discusses search and rescue efforts in the wake of the devastating tornado in Moore, Okla.

• Video: Headlines: Apple avoided paying billions in taxes

  "CBS This Morning" takes a look at some of the day's headlines from around the globe.

• Video: President Obama declares Okla. a major disaster

  President Obama has declared a major disaster in Oklahoma, and is now sending federal help to the area devastated by a tornado. CBS News chief White House correspondent Major Garrett reports on the disaster response.

• Video: Devastating storm system: What to expect next

  Larry Mowry, chief meteorologist at CBS Dallas/Fort Worth station KTVT, discussed the Midwest storm's strength and where it is headed.