Not so chatty when you're not on email, huh? David Wildstein, former official in the New York-New Jersey Port Authority who closed lanes of the George Washington Bridge last year, invoked the Fifth Amendment at a New Jersey assembly inquiry Thursday. Wildstein would not even say that he worked for the Port Authority. "On the advice of counsel, I assert my right to remain silent," Wildstein said. "Time for some traffic problems in Fort Lee," Christie's deptuy chief of staff wrote via email last September. "Got it," Wildstein responded.