Aye, and there's the rub. No disrespect to the DNR intended; I've worked as an environmental consultant, and alot of the people I've dealt with are top notch. But when you see articles in some of the outdoor publications regarding such issues, the stock response is to often "not here".
There's also the tendency to dismiss any sightings as mistaken identification, i.e.: not a cougar, a bobcat; not a bear, a dog; etc. Stupid mistakes do indeed occur; my favorite was when a woman near Ironwood(?) ran into the sheriff's office and reported that she'd hit a lion! Lions being rare in the UP of Michigan, they investigated to find out it was a bobcat.
That's just my thought on the matter.
Michbob.