On your marks. Get set. Go. If you've ever attended a race event, you've probably heard these commands. Everyone gets in position, and then they dazzle onlookers with their speed. But this weekend in ...

Four and twenty tailors went to kill a snail . . . Run, tailors, run, or she’ll kill you all e’n now. —Old Nursery Rhyme The sluggish snail has turned out to be far more deadly than the anonymous poet ...