New Threat Ahead Of 9/11
Possible new terror threat concerns federal authorities as the 10th anniversary of 9-11 draws near.
Homeland Security says there's a specific, credible threat, but it's not confirmed.
Authorities say it appears to involve car or truck bombs in New York.
But there are conflicts about the information.
Authorities warn that there could be more threats over the weekend, but say that it's not unusual before big events like this.
Security was already tight in New York.
Streets around ground zero will shut down on Friday.
Nearby residents have been told to stay inside Sunday.
Thousands of uniformed officers will swarm the area.
"And I believe we are safe. I also take great comfort in tonight where the FBI and NYPD are working together with the other law enforcement agencies," said New York City Mayor Michael Bloomberg.
Mayor Bloomberg says even though the city is in a heightened state of alert, he doesn't want residents in a heightened state of fear.
In fact, the mayor says he's safe enough to take the subway.