President Barack Obama and first lady Michelle Obama arrive on Air Force One, Sunday, Jan. 6, 2013, at Andrews Air Force Base, Md., as they return from their Hawaii vacation. (AP Photo/

 

              President Barack Obama and first lady Michelle Obama arrive on Air Force One, Sunday, Jan. 6, 2013, at Andrews Air Force Base, Md., as they return from their Hawaii vacation. (AP Photo/
President Barack Obama and first lady Michelle Obama arrive on Air Force One, Sunday, Jan. 6, 2013, at Andrews Air Force Base, Md., as they return from their Hawaii vacation. (AP Photo/Carolyn Kaster)