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FILE – Rescue workers work in the rubble at the Champlain Towers South Condo in Surfside, Fla., in this Friday, June 25, 2021, file photo. Video released by a team of federal investigators shows more evidence of extensive corrosion and overcrowded concrete reinforcement in a Miami-area condominium that collapsed in June, killing 98 people. The National Institute of Standards and Technology also announced Wednesday, Aug. 25, it will conduct a five-pronged investigation into the Champlain Towers South collapse, which will be led by Judith Mitrani-Reiser. She is a Cuban-born engineer who grew up in Miami.(AP Photo/Gerald Herbert, File)