Trapped soccer team's cave is losing oxygen

Oxygen in the Thai cave where a boys soccer team has been trapped is plummeting to dangerously low levels, authorities said Friday. Oxygen underground in the Tham Luang cave complex registered at just 15 percent, a level that could pose a risk of hypoxia, Thai navy SEAL chief Rear Adm. Aphakorn Yoo-kongkaew told CNN. The...