article_snippet: This all happened just before President Obama and his family his family were preparing to takeoff on Marine One to go to Andrews Air Force Base and then Selma, Alabama.
article_snippet: his family was heading to Selma for a special 50th anniversary ceremony marking the historic march.
article_snippet: President Obama will deliver a speech to commemorate the event.
article_snippet: lockdown ended around 11am, and President Obama and his family President Obama eventually traveled to Andrews by motorcade rather than helicopter.
article_snippet: A uniformed Secret Service officer radios as a motorcade vehicle prepares to take U.S. President Barack Obama and First Lady Michelle Obama to Joint Base Andrews .
article_snippet: A Secret Service agent tells Press covering the event to return to the press room prior to U.S. President Barack Obama and First Lady Michelle Obama's departure from the White House . '
highlights_snippet: This all happened just before President Obama and his family were preparing to takeoff on Marine One to go to Selma, Alabama .
  