Dr. Michio Kaku sits down with Stuart Varney on FOX Business for a rapid-fire discussion of the science behind a number of life-threatening developments happening right now that could really ruin your day. Pick your poison: Will it be death by over-speeding train? How about a mysterious and systematic breakdown in the food chain? Why not cut to the quick with a mile-wide asteroid on a collision course for Earth? All are covered in a lively session you really should see. WATCH NOW!