Following their season-opening loss to the Colts, the Saints flew to Raymond James Stadium for an NFC South duel with the Tampa Bay Buccaneers.  In the first quarter, New Orleans trailed early as Bucs RB Carnell "Cadillac" Williams got a 1-yard TD run for the only score of the period.  In the second quarter, the Saints continued to struggle as Tampa Bay QB Jeff Garcia hooked up with WR Joey Galloway on a 69-yard TD pass and a 24-yard pass. In the third quarter, the Buccaneers extended their lead with Williams getting another 1-yard TD run.  Afterwards, New Orleans finally got on the board with FB Mike Karney getting a 1-yard TD run.  However, in the fourth quarter, Tampa Bay closed out the game with kicker Matt Bryant's 27-yard field goal.  The Saints would get the final score of the game as QB Drew Brees completed a 4-yard TD pass to WR Marques Colston.
Question: How many yards was the shortest touchdown pass?
Answer: 4