collapse. >> our rescue teams are nonstop. doing all that we can. searching every area, every bit of hope to see if we can find a live victim. >> and this has become an international rescue effort. teams from israel and mention sew arriving to assist. crews are working, sifting through mountains of rubble. they dug a massive trench to aid in the search. one official describing what they are finding as horrific. but there are growing questions about why this building suddenly collapsed. cnn has learned that the condo association was warned in 2018 that repairs for the building could cost more than $9 million. some roofing repairs just recently begun. the governor saying debris is being moved into a warehouse for forensic analysis. we have team coverage on the ground in surfside, florida tracking the latest developments. wolf, let's go to you. >> there are significant