Yes alot of countries use US to do their dirty work. Iran should be having a ball right now, Shia is now the the power holder within Iraq leading to closer ties and making them more cocky when before what kept them in line was Saddam. Yep, Iran would be happy.
You seem to forget, US also used Muslims and mobilised them against the soviets and has its fair share of 'using' too.
Meh, HOA is worrying to me due to the Islamists aim. They don't care about Ethiopia anymore, they know its withdrawing but they still want to fight to impliment Shariah law into Somalia :S