“Sometimes the pile groans under the attack. ‘We detect sounds all the time, but that doesn’t mean they are humans,’ said FEMA official Margarita Castro. Specialists use sonar and microphones to listen for faint sounds of life. ‘The pile makes sounds from debris or metal; it could be anything, but we inspect everything.'” Hell by the Sea What it’s like on the pile that was Champlain Towers South.

+ The collapse of Champlain Towers South hasn’t caused many to leave Champlain Towers North.