Hoping to rebound from their tough overtime road loss to the Raiders, the Jets went home for a Week 8 duel with the Kansas City Chiefs.  In the first quarter, New York took flight as QB Brett Favre completed an 18-yard TD pass to RB Leon Washington.  In the second quarter, the Chiefs tied the game as QB Tyler Thigpen completed a 19-yard TD pass to TE Tony Gonzalez.  The Jets would answer with Washington getting a 60-yard TD run.  Kansas City closed out the half as Thigpen completed an 11-yard TD pass to WR Mark Bradley. In the third quarter, the Chiefs took the lead as kicker Connor Barth nailed a 30-yard field goal, yet New York replied with RB Thomas Jones getting a 1-yard TD run.  In the fourth quarter, Kansas City got the lead again as CB Brandon Flowers returned an interception 91 yards for a touchdown.  Fortunately, the Jets pulled out the win with Favre completing the game-winning 15-yard TD pass to WR Laveranues Coles. During halftime, the Jets celebrated the 40th anniversary of their Super Bowl III championship team.
Question: How many first half touchdowns did the Chiefs score?
Answer: 2