I'll try. A rolling meth lab basically means the lab is mobile. Instead of the product being manufactured in a house, building, trailer, motel room, tent, whatever, it is set up in the back of a vehicle (usually a van, station wagon, SUV, etc.). The product could be in its raw form (unmixed chemicals); it could be finished product; partially cooked - basically the same operation that would take place in a fixed location. That being said, it could explode at any time, anywhere the transport is located. That's why the need to shut down the interstate until the chemicals can be stabilized AN