President Obama honors former president John F Kennedy at his gravesite

 ARLINGTON, Va.-- President Obama laid a wreath at President John F. Kennedy's gravesite Wednesday afternoon.

The first lady, former President Bill Clinton and former US Secretary of State Hillary Clinton attended the solemn ceremony at Arlington National Cemetery.

President Kennedy's niece, Kathleen Kennedy Townsend, was there to represent her family.

This Friday marks the 50th anniversary of President Kennedy's assassination.