Can a government kill one of it's citizens overseas without a trial?

[Kasz216]

The answer surprisingly enough appears to be.... yes.

Which I totally disagree with.

http://openchannel.msnbc.msn.com/_news/2011/09/30/8063632-can-us-legally-kill-a-citizen-overseas-without-due-process

If the person is a US citizen, they shouldn't be a direct target of death attacks unless tried first, even if it means having to be tried in absentia first.