CBS News' John Dickerson began his new role as co-host of "CBS This Morning" on Wednesday. Gayle King and Norah O'Donnell welcomed him to the broadcast and reflected on his own mother's legacy at CBS News. Nancy Dickerson was the first woman to be hired as a network correspondent at CBS.

A Louisiana school board is under fire after educator Deyshia Hargrave was handcuffed and arrested by a city marshal Monday night. At a board meeting, Hargrave had expressed frustration with the plan to give the superintendent a raise upwards of $35,000. Vladimir Duthiers reports.

An investigation is underway after a top secret U.S. spy satellite Zuma apparently failed to achieve orbit and disappeared. It was launched aboard a SpaceX rocket on Sunday, and defense company Northrop Grumman built the satellite, which cost billions of dollars. David Martin reports.