Last Edited: Thursday, 27 Mar 2008, 6:06 PM EDT Created: Thursday, 27 Mar 2008, 4:43 PM EDT An armed man continues to keep authorities at bay on the Walt Whitman Bridge. The Walt Whitman Bridge between South Philadelphia and Gloucester City, N.J., has been closed since about 4:30 p.m. New Jersey State Police Capt. Al Della Fave says troopers tried to stop a vehicle for a minor speeding violation, but the driver wouldn't pull over. He says troopers stopped the pursuit after a few minutes because the man was driving erratically and police feared someone would get hurt. After that,...