WASHINGTON (AP) — A U.S. government database of known or suspected terrorists doubled in size in recent years, according to newly released government figures. The growth is the result of intelligence agencies submitting names more often after a near-miss attack in 2009.

There were 1.1 million people in the database at the end of 2013, according to the National Counterterrorism Center, which maintains the information. About 550,000 people were listed in the database in March 2010.