Two terror suspects may be U.S. citizens
In New York on Friday, security worker Eric Martinez wore a pin depicting the twin towers on his lapel as he headed to work in lower Manhattan where he also worked 10 years ago when the towers came down. "If you're going to be afraid, you're just going to stay home," he said.
Mayor Michael Bloomberg, too, made a point of taking the subway to City Hall.
Briefed on the threat Friday morning, President Barack Obama instructed his security team to take "all necessary precautions," the White House said. Obama still planned to travel to New York on Sunday to mark the 10th anniversary with stops that day at the Pentagon and Shanksville, Pa.
Washington commuters were well aware of the terror talk.
Cheryl Francis, of Chantilly, Va., said she travels over the Roosevelt bridge into Washington every day and doesn't plan to change her habits. Francis, who was in Washington on Sept. 11, 2001, said a decade later the country is more aware and alert.
"It's almost like sleeping with one eye open," she said, but she added that people need to continue living their lives.
The intelligence community regularly receives tips and information of this nature. But the timing of this particular threat had officials especially concerned, because it was the first "active plot" that came to light as the country marked the significant anniversary, a moment that was also significant to al-Qaida, according to information gleaned in May from Osama bin Laden's compound.
The U.S. government has long known that terrorists see the 10th anniversary of 9/11 and other uniquely American dates as opportunities to strike. Officials have also been concerned that some may see this anniversary as an opportunity to avenge bin Laden's death.
Britain, meanwhile, warned its citizens who are traveling to the U.S. that there was a potential for new terror attacks that could include "places frequented by expatriates and foreign travelers."
Acutely aware of these factors, law enforcement around the country had already increased security measures at airports, nuclear plants, train stations and more in the weeks leading up to Sept. 11. The latest threat, potentially targeting New York or Washington, prompted an even greater security surge in those cities. U.S. embassies and consulates abroad had also boosted their vigilance in preparation for the anniversary.
At Penn Station in New York, transit authority police carried assault rifles and wore helmets and bullet proof vests as they watched crowds of commuters. Police searched passengers' bags as they entered the subway, and National Guard troops in camouflage fatigues moved among riders, eyeing packages.
In Washington, Police Chief Cathy Lanier warned that unattended cars parked in suspicious locations or near critical buildings and structures would be towed.
Speaking in New York, Secretary of State Hillary Clinton said there was "a specific, credible but unconfirmed report that al-Qaida, again, is seeking to harm Americans and in particular, to target New York and Washington."
RecommendedRecent Facebook Activity
Only On 7
Now you can get customized weather right down to your street! Plan your day and week ahead with ABC7's Interactive 7-day forecast!
TBD Blogs What you need to read
The Market Report
@TBD On Foot
Best of TBD In case you missed it
Here's a visual look at the eight most delicious, disgusting meals in the country.