Awww heck, if they make it more difficult, then you'll get a flood of people screaming "Oh migod, it's just too hard!!! NERF IT NERF IT!!!"
Personally, I'd like to see a lot of things get a pass over to increase some of the difficulty levels (without involving things along the lines of "Gozer torps of doom")
butcher suspect, "What'd you hit me with?"
Temperance Brennan, "A building"