Pot, kettle.
To get back on track I think it's more to do with the environment you're in than what the media are telling you. I live in a place where people open fruit on street corners with machettes and the cops carry machine guns. At no point have I ever felt like I was going to be stabbed or shot.
A while back a guy got opened up with a machette spitting distance from where I live, I never saw the attack but the aftermath was like a scene from Dexter. Claret everywhere. I still feel the same about guns or machettes. Complete indifference.
I've also stood next to a guy in a 7/11 in Sweden who had an 8" Rambo knife strapped to his leg and a rifle strapped over his shoulder. Nobody batted an eyelid, because he was off hunting moose and hunting is a large part of their culture in Scandinavia. Had he being wielding either then it might have been a different story as there's a big difference between wielding a knife or gun and holding a knife or gun.
If I was in Basra under the same pretences then I'm sure I'd feel differently about both those situation. But not because what a newspaper had told me what to think, purely because of my inbuilt survival instincts.
I like to think as myself as streetwise, I've been in some hairy situations, but until bullets start flying or axes are being swung at my head then chances are I'd be up for a few selfies with some boys armed to the teeth, hanging off the back of a Hylux, just for shits 'n giggles.