Miami condo collapse: How is technology aiding rescuers’ search?

Search and rescue personnel search for survivors through the rubble at the Champlain Towers South Condo in Surfside, Florida, section of Miami, on Friday, June 25, 2021. The apartment building partially collapsed on Thursday. — Miami-Dade Fire Rescue via AP

Search teams have been using drones, sonar, highly sensitive microphones and a range of other new and established technologies to help search for people in the oceanside condominium building near Miami that collapsed into a smoldering pile of rubble.

Will any of it help?