Context: Hoping to recover from a two-game skid, the Cardinals flew to the Georgia Dome for a Week 4 match-up with the Atlanta Falcons.  From the get-go, the Cardinals trailed, as Falcons kicker Morten Andersen completed a 34-yard and a 40-yard field goal in the opening period.  The Cardinals would respond with a 29-yard field goal by kicker Neil Rackers.  In the second quarter, Arizona continued to trail, as Koenan belted a 51-yard field goal for Atlanta.  The Cardinals would strike back with SS Adrian Wilson returning an interception 99 yards for a touchdown, but that would be the only time that the Cardinals saw the lead, as Andersen got a 36-yard field goal to give the Falcons the lead at halftime.  In the second half, the Cardinals got shot down and shut-out, as Atlanta scored 20 unanswered points (Andersen's 26-yard field goal, CB DeAngelo Hall's 37-yard interception return in the third quarter, rookie RB Jerious Norwood's 78-yard TD run & Andersen's 28-yard field goal in the fourth quarter).  Not even QB Matt Leinart, who replaced QB Kurt Warner in the fourth quarter, could save Arizona from dropping three-straight games, as the Cardinals fell to 1-3. The game showed just how much the Cardinals must improve their offensive line, as they were whipped for the whole game by the Falcons defensive line.

Question: How many defensive touchdowns were scored in the game?

Answer:
2