I agree with GTW6401.GTW6401 said:The reason they don't go into the Packard Plant anymore is that the entire complex is vacant, full of garbage and other debris. Multiple parts of the complex have collapsed. It should tell you something if Detroit firefighters wont go into the building considering how offensive minded they are.
Another issue is that many people like to come down from the suburbs and wander around Packard taking photos, tagging or people stripping to find parts for scrap. Detroit Police were removing people from the building across the street during last nights fire, which was mostly just trash burning on the 3rd floor, but generated a lot of smoke which brought people out of the woodwork. Some made it upstairs and were breaking glass, which luckily didn't come crashing down to the sidewalk below. There are many interior shots from Packard on sites like Flickr if you want to see what inside is like.