Vanya, I have no problem with the "extra-judicial murder" you are talking about. The issue is one of an American citizen actively involved with a terrorist organization, in an area where an arrest can't be made.
The citizens in question know they are in violation of US and international law. They know they are working with people who are killing US and other citizens. They know they are wanted. They could always surrender to US agencies or a US embassy, or to Interpol, etc.
Instead, they continue to build bombs, or provide intelligence or funding, etc.
If you can't get to them where they are in order to make an arrest, then get to them with a Hellfire.
And yes, I've thought about it.
The citizens in question know they are in violation of US and international law. They know they are working with people who are killing US and other citizens. They know they are wanted. They could always surrender to US agencies or a US embassy, or to Interpol, etc.
Instead, they continue to build bombs, or provide intelligence or funding, etc.
If you can't get to them where they are in order to make an arrest, then get to them with a Hellfire.
And yes, I've thought about it.