Obama locked out of the White House

WASHINGTON: US President Barack Obama, the world's most powerful man, was confronted by a locked door when he tried to enter the Oval Office, the US president's office, from a terrace at the White House as he returned early from a trip to Latin America.

With a nonchalant stroll and a whistle, he walked past another set of locked doors before he was finally able to gain access to his office.