Coming off their home win over the Bengals, the Cowboys flew to the University of Phoenix Stadium for a Week 6 showdown with the Arizona Cardinals.  In the first quarter, Dallas immediately trailed as Cardinals RB J.J. Arrington returned the game's opening kickoff 93 yards for a touchdown.  In the second quarter, the 'Boys responded with QB Tony Romo completing a 55-yard TD pass to WR Patrick Crayton.  In the third quarter, the Cowboys took the lead as Romo completed a 14-yard TD pass to WR Miles Austin.  Arizona would tie the game with QB Kurt Warner completing a 2-yard TD pass to WR Larry Fitzgerald.  In the fourth quarter, the Cardinals took the lead as Warner completed an 11-yard TD pass to WR Steve Breaston, along with kicker Neil Rackers getting a 41-yard field goal.  Afterwards, the 'Boys tied the game with Romo completing a 70-yard TD pass to RB Marion Barber, along with kicker Nick Folk nailing a 52-yard field goal.  However, in overtime, Arizona emergered as WR Sean Morey blocked a punt attempt, allowing LB Monty Beisel to return it 3 yards for the game-ending touchdown. In the week following the game Tony Romo was listed as questionable with a broken right pinkie finger. In addition, Matt McBriar and Sam Hurd were placed in injured reserve, and Felix Jones was listed as out for 2-3 weeks with a hamstring injury.  Furthermore, Adam (Pacman) Jones was suspended by the NFL for a minimum of 4 weeks after an altercation with his bodyguard. The Cowboys traded for WR Roy Williams with the Detroit Lions, in exchange for their first, third, and sixth-round picks.
Question: How many yards was the longest touchdown pass?
Answer: 70