Mayor Daley buying "assault rifles"
Story in the Chicago Tribune
And from Mayor Daley we learn:
There is a form of gun known as "a semi-fully-automatic weapon."
"Criminals" can "carry assault weapons, it's not a violation of federal law..."
The city plans to buy "semiautomatic assault rifles," specifically "M4 carbines." (I guess that could be right if they bought Bushmaster uppers).
Hat tip to reader Ambiguous...