http://www.bloomberg.com/news/2011-09-11/terror-threat-spurs-frozen-zones-truck-inspections-heavily-armed-police.htmlNew York officials have increased security with frozen zones, truck inspections and heavily armed police after reports of a credible, uncorroborated threat that al-Qaeda may be plotting an assault in the city today, the tenth anniversary of the 2001 terrorist attacks.
A decade ago, a group of men tied to the terrorist group hijacked four airliners, flying two into the World Trade Center towers in New York; a third into the Pentagon in Arlington, Virginia; and crashing a fourth in Shanksville, Pennsylvania, after passengers thwarted the hijackers. Close to 3,000 people were killed that day.
U.S. President Barack Obama is scheduled to attend ceremonies at Ground Zero this morning with former President George W. Bush. Large concrete blocks have been placed at lower Manhattan intersections, including Barclay and Church streets, as well as at Park Place and at West Broadway, to prevent traffic from getting close to the site. Metal barricades line streets to prevent cars from stopping or parking.