Jurisprudence An Ingenious New Strategy for Blocking ICE Detention Warehouses Depends on a Minuscule Snail The site for a planned ICE detention center in Williamsport, Maryland. Andrew Harnik/Getty Images. Sign up for  Executive Dysfunction , a newsletter that highlights one under-the-radar story each week about how Trump is changing the law—or how the law is pushing back. You’ll also receive updates on the latest from Slate’s Jurisprudence team. Tucked away in rural western Maryland, past a dead-end road cut off by railroad tracks, a stream runs cool and clear over a ledge dotted with snails. About the size of a flake of black pepper, one particular species of snail believed to live at this waterfall is playing a part in the legal battle over a massive immigration detention center planned for about 700 yards upstream in Williamsport, Maryland. The fight between the state of Maryland and U.S.…