Why no assasinations?

What's with this taboo on assasination that the US government seems to have?  Why is it such a bad idea to send a covert unit to kill the leader of your enemies instead of carpet bombing the whole damn country, causing the deaths of hundreads of troops and civillians and costing billions of dollars? 

Assasination is a fuck good idea!  Why discount it in whole?

>> 23

No, the definition of genocide as above is:

"The deliberate and systematic extermination of an ethnic or national group."

What is happening in Niger and Sudan is ethnic cleansing. There is no attempt being made to kill them in entirety, which is what is meant by extermination. Many refuges have even reported being  warned to move days before the militias come. Not to excuse their heinous actions, but the Arab government-backed militias are *not* trying to exterminate the blacks (if they were, there would be no warning, no encouragement to flee), they're simply *moving* them through threat and use of force.

Ethnic cleansing is perhaps the 2nd worst thing humans do to each other. But it is not equal to nor the same as genocide.