Barack Obama and Joe Biden
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Obama and Biden in White House jog for health campaign

President Obama and Vice-President Joe Biden have taken part in a health campaign called "Let's Move" by making a film of the pair jogging around the White House.

"Let's Move" is Michelle Obama's initiative to fight childhood obesity by encouraging healthy eating and an active lifestyle.

Mrs Obama has unveiled new changes to US nutrition labels, the most sweeping overhaul in more than two decades.

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