Obama Speech On Iran Nuclear Facility (LIVE VIDEO)

President Obama and the leaders of France and Britain will address the Group of 20 summit in Pittsburgh this morning and accuse Iran of building a secret nuclear facility, AP reports.

The three leaders - Obama, British Prime Minister Gordon Brown and French President Nicolas Sarkozy - will open the G-20 economic summit with their demand that Tehran allow the International Atomic Energy Agency to inspect the facility for producing nuclear fuel, officials said.

Iran has kept the facility, 100 miles southwest of Tehran, hidden from weapons inspectors, but the U.S. has long known of its existence, the official said. Obama decided to go public with the revelation after Iran learned that Western intelligence agencies were aware of the project.