WHILE IN TRAFFIC I PUSHED MY BRAKE PEDAL DOWN HARD TO STOP AND IT WENT TO THE FLOOR. SOME BRAKING RESISTANCE WAS FELT BY THE VEHICLE BUT I STILL HIT THE CAR IN FRONT OF ME. THERE WAS ONLY A MINOR SCRATCH ON THE CAR I HIT BECAUSE I ALSO HIT THE PARKING BRAKE ONE THE BRAKE PEDAL DIDN'T DO ANYTHING. THERE WAS NO WARNING LIGHT TO INDICATE A PROBLEM BUT WHEN I PULLED OFF THE ROAD THE BRAKE LINE GOING TO THE REAR BRAKES WAS SQUIRTING FLUID. ALL OF THE BRAKE LINES ON THE CAR SHOWED HEAVY SIGNS OF RUST. *TR