U.S. Beefs Up Security In Face Of Possible 9/11 Threat

Heightened security was visible in New York City and Washington Friday, as intelligence officials worked to pin down information about a potential al Qaeda threat coinciding with the 10th anniversary of the September 11 terrorist attacks.

"We have received credible information very recently about a possible plot directed at the homeland that seems to be focused on New York and Washington, D.C.," a senior administration official told CNN.

However, officials say that while a threat is highly possible, their intelligence has not been corroborated

Watch the video for more details: