Putting their four-game winning streak on the line, the Panthers flew to Paul Brown Stadium for a cat fight against the Cincinnati Bengals.  The Panthers stratched first as QB Jake Delhomme threw a 7-yard TD pass to TE Kris Mangum for the only score of the first quarter.  In the second quarter, both teams swapped TD blows, as Bengals QB Carson Palmer completed a 16-yard TD pass to TE Reggie Kelly, while Carolina RB Nick Goings caught a 20-yard TD pass.  Unfortunately, the Panthers would get shut out in the second half, as Cincinnati got the win with kicker Shayne Graham belting a 23-yard field in the third quarter, while Palmer threw a 1-yard TD pass to WR T. J. Houshmandzadeh.  With the loss, Carolina fell to 4-3.. How many yards was the shortest touchdown pass?