My 0.02 FWIW...
Guns are something that lots of sheep THINK they know something about. They see the BS that is spread about guns and those that have guns on TV, in movies and the press every single day.
WMD's are so far beyond most peoples comprehension that they really have no clue as to the destruction that can be wrought with them.
Also there's the NIMBY (Not In My Back Yard) factor. The guy next door may be a nut-job with an evil assault rifle that shoots cop killer bullets 2 miles through armor and doubles as AAA to take out airliners at 35,000 feet. THAT’S A THREAT THEY THINK IS REAL. The idea of Iraq or the DPRK with NBC weapons is threat that's too abstract for them to comprehend. And besides, they're "way over there. It won't effect my TV viewing and beer drinking and driving my SUV".
Whew.... sorry for the rant. Guess I just discovered a hot button that got pushed. [:D]
[i]edited because, once again I didn't pay attention to the spell checker[/i]