Talking about geopolitics when a regional war results in an airplane being shot out of the sky is not "off-topic crap." 
		 
		
	 
Actually, really, you guys are missing the big picture.
Many countries outside the US are very fragmented, and it's downright impossible to completely protect against flying an aircraft over a potentially hostile region. It's easy to say that we should just stay away from Ukrainian airspace (which we do), but we have no idea if hostile groups with SAM sites are hiding out in Russia, Belarus, Poland, Moldova, Romania, etc. Those are countries we still 
do overfly, even after recent events.
Hell, even with the ISIS issues in Iraq, civilian air traffic is still heavy through Baghdad's airspace, mostly because the only other options are Iran (nope), or Syria (noooope). You can always take a southerly route over Saudi and Egypt, but the latter in particular has its own set of security problems. The general belief about overflying these regions is that these extremist groups don't have the firepower to reach your altitude, but we just learned the hard way that they 
do. It just depends on who's backing them.
And really, that's what's so gut-wrenching about this: It could have been anybody, and there's not much you can do if you're sitting there eating dinner at FL370 and catch the proverbial Golden BB. It doesn't keep me up at night, but it makes you think. There's a whole lot of world outside domestic hub turns.