in july 2004, four workers at a kansas meat-packing plant are killed. there's much, much more, but you get the idea. timothy dimhoff is a security expert who advises companies on issues of safety and violence and he joins us from cleveland, ohio. and timothy, thanks for joining us, we appreciate it. these are tough economic times. is, you know, is the, are the tough times out there? are they contributing to a more dangerous workplace? is that what we're seeing? >> yeah, it's one big factor. the tougher times, economic times, people losing jobs, reading about it, the media coverage, there's a lot, a lot of negative press out there. and people are feeling squeezed today. they're concerned. and basically, the human mind can only take so much and it's starting to crack. >> and according to the u.s. burg of labor statistics, 1,000 people were killed on the job between 1997 and 2007 by a co-worker, or a former co-worker