



It has become a 9/11 biker tradition. Hop on the hog and roll toward the nation's capital, along with a million or two of your biker brothers and sisters. All to commemorate the victims of 9/11.

Expect a traffic nightmare in D.C. today.

UPDATE: How the day went in D.C. and how many bikers actually turned out

Well, the bikers are rolling again today – an estimated 2 million of them. And after some flaps over permits, this rolling parade has a clear path in the nation’s capital.

But pity the poor commuter. While the bikers now have the go-ahead, expect nothing short of a traffic nightmare in and around D.C. today.

"It is not a crime to parade" through the city without a permit, Ted Gest, a spokesman for the D.C. attorney general's office, told U.S. News. That office prosecutes violations of D.C. law.

But Gest cautioned the riders, adding: "I don't think we can speculate on what penalties the motorcycle riders might be subjected to for traffic or other offenses because we don't know what they're going to do."