What's the lowdown on reheating food in plastic containers. I've noticed some comments here saying it is dangerous. I am one that tends not to believe much of the hype surrounding artificial sweeteners, mercury in tuna, etc.......I think that crap is started politicians and funded by political action groups and people with nothing better to research. So, I'm not really concerned about this much. I would, however like to see the opinions and any doccumentation on the subject. I use mostly the disposable tupperware stuff. Comments appreciated.