VIDEO: Iran deal makes the world more secure - Obama

US President Barack Obama said on Wednesday that the nuclear deal reached with Iran and six major world powers will makes the world "safer and more secure."

During a speech at the White House he added the "alternative" would "endanger the security of the United States.

Under the agreement reached in Vienna on Tuesday, Iran agreed to limit its nuclear activity in return for sanctions relief.

The US Congress has 60 days to review the agreement, and House and Senate leaders have already signalled that they think Obama made too many concessions.