As the London Olympics gets under way, the director of the National Counterterrorism Center said Wednesday that U.S. intelligence agencies had established a "threat integration center" with British security officials to analyze threats(...)

The threat analysis center will be staffed by officials from the CIA, NCTC and the FBI as well as other U.S. intelligence services to review threat information and quickly share it with British Security officials from Scotland Yard, MI-5 and MI-6.

According to officials, the threat integration center, which is housed at the U.S. Embassy in London became fully operational on Wednesday. Spokespeople from the CIA and FBI declined to specifically address how many employees and agents they have in the United Kingdom assisting with the Olympic security effort, but two sources said the FBI had a contingent of about 50 employees and agents working in the United Kingdom.