Trigger happy

First, we have all the stories of the mayhem being caused by Blackwater guards. Now, it's the Secret Service too. Weird:

The U.S. Secret Service is investigating why one of its agents shot his car last month during a United Nations visit by the Iranian premier.

… two security officials familiar with the incident tell ABC News the agent was protecting Iranian President Mahmoud Ahmadinejad.

The accident is the second reported incident of its kind this year. In April, two Secret Service officers protecting the White House grounds went to the hospital with non-life-threatening injuries after one of their weapons accidentally fired.