I'll grant you they are similar basslines, but I'd hardly call it a copy. And, as phenomenal as Rourke's original was, and as infinitely superior as The Smiths were to The Killers, I greatly prefer Jennie Was A Friend Of Mine to Barbarism Begins At Home.
Of additional relevance to this thread is the fact that this Killers' song was chosen by Morrissey to be included on his NME compilation disc Songs To Save Your Life, and that The Killers opened for him on an early leg of the You Are The Quarry tour. They also covered Why Don't You Find Out For Yourself during a radio session.
(Just in case some didn't know...)