the president mocked the me too movement. where is the poison in authorities trying find the source of the toxic material before more british citizens collapse. welcome to "the lead." i'm erica hill in for jake. the dire rescue. a volunteer helping died while making the five-hour dive out of the caves. after delivering oxygen tanks to the team's location. that reality emphasizing just how dangerous this trek would be for these boys. some of whom cannot swim. all of have been physically weakened by the ordeal. an official says the boys are not likely to be rescued in the coming hours because of that danger. this is the oxygen levels in the cramped, pitch black cave are