Family fears oil spilled on their land will leak and ruin their crops . TransCanada plans an oil pipeline across key U.S. water supply . Opponent : `` The time in which we can isolate those valves from this control center takes about three minutes , '' Jones said . Oil threatens ecosystems at a magnitude of the Gulf spill . Response : Oil shutoff possible in minutes , followed by immediate response .
Family fears oil spilled on their land will leak and ruin their crops . TransCanada plans an oil pipeline across key U.S. water supply . Opponent : Oil threatens ecosystems at a magnitude of the Gulf spill . Response : Oil shutoff possible in minutes , followed by immediate response .