We in Rhode Island, along with most people the world over, are spared the even the passing need to believe that terrorism is a real possibility in our daily lives:

U.S. authorities warned yesterday that recent intelligence indicates that al-Qaida may be plotting a terrorist attack on the subway or other transit systems in New York during the holidays.
U.S. officials said that the intelligence, gathered by the FBI, had not been corroborated and that there was no indication that the suspected plot had progressed beyond preliminary discussion among operatives linked to al-Qaida.
The warning comes at a time when New York subways and other public transportation systems are jammed with holiday travelers — a scenario that counterterrorism officials have long considered an attractive target for al-Qaida.

My family and I sat within nine miles of the Tappan Zee Bridge, which crosses the Hudson River just north of New York City, for about two hours on Wednesday, partially as a result of this announcement. Nothing happened (in the United States, that is), but ’round here, the threat of terrorism isn’t even brought home to the extent that we have to make daily decisions on its basis.