Damning testimony. A top u. S. Vaccine expert warns lawmakers that time is running out to get the pandemic under control. Also this hour, as some summer camps and Child Care Centers in the u. S. Start to reopen, Health Officials issue a new warning about a syndrome affecting a growing number of children in the u. S. Also, a cnn exclusive. We take you inside Caesars Palace to see how they plan to keep gamblers safe when the Las Vegas Strip finally reopens. Were live from cnn World Headquarters in atlanta. Welcome to our viewers here in the United States and all around the world. Aim natalie allen. Cnn newsroom starts right now. Thank you so much for joining us. Our top story, a senior u. S. Health official warns the United States is running out of time to tackle the coronavirus pandemic. The disease already has claimed almost 86,000 american lives according to Johns Hopkins university. They say the u. S. Death toll will go higher. On thursday u. S. Vaccine expert rick bright told congre