Tornado safety: What is the safest room in the house?

Tornado safety: What is the safest room in the house?

I had the opportunity at NCAR to hear about VORTEX, the research being done by NCAR on tornados. They just finished chasing tornados, right before I arrived in Boulder and had I wanted to, I could have gone on a 3 day mission around several states trying to catch the dangerous formations. There were a convoy of 40 scientific vehicles and researchers driving like mad when they saw a storm. They were blocked by looky-loos, who wanted to take videos and sell them. But the interesting thing was- they don't know if tornados form top to bottom or bottom to top.