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'The enormity of the task is daunting': Perilous search continues at collapsed Miami condo

05:12

Particia Mazzei, Miami bureau chief for the New York Times, talks with Rachel Maddow about how authorities are trying to determine how many people might have been trapped in the collapsed Champlain Towers South Condo in Surfside, Florida near Miami, and the dangerous conditions search crews face as they work through the pile of rubble.