[.....]
>Loren Thompson, a defense analyst at the Lexington Institute in
>Arlington, Va., said that what was notable about the recent
>shoot-downs was that they were attributed to small-arms fire rather
>than missiles..... Once the U.S. began flying lower to evade
>high-flying missiles, insurgents apparently traded in missiles for
>rocket-propelled grenades or machine guns that can down a helicopter
>flying just a couple of hundred feet above ground, he said.
[.....]
http://www.latimes.com/news/nationworld/world/la-fg-chopper8feb08,0,2082596.story?coll=la-home-world