Trying to avoid their first 0-3 start since 1999, the Falcons played their Week 3 home opener against their divisional rival, the Carolina Panthers. After a scoreless first quarter, Atlanta trailed early as Panthers kicker John Kasay got a 45-yard field goal. Afterwards, the Falcons took the lead with QB Joey Harrington completing a 69-yard TD pass to WR Roddy White. However, Carolina retook the lead with QB Jake Delhomme completing a 13-yard TD pass to RB DeShaun Foster. Atlanta tied the game prior to halftime with kicker Morten Andersen getting a 24-yard field goal. In the third quarter, the Falcons regained the lead with Harrington completing a 13-yard TD pass to TE Alge Crumpler, yet the Panthers regained the lead with Delhomme completing a 5-yard TD pass to TE Jeff King, along with Foster's 10-yard TD run. In the fourth quarter, Carolina ended its scoring with Kasay kicking a 49-yard field goal. Atlanta tried to mount a comeback, yet the only score was Andersen's 25-yard field goal.

Answer this question based on the article: How many of the touchdowns were passing touchdowns?
4