people safe online. a saudi man arrested at paris airport on tuesday on suspicion of involvement in the killing of the saudi arabian journalist, jamal khashog—ji, has been released. the paris prosecutor's office said that identity checks had established that an arrest warrant issued by turkey did not apply to the man. underwater now, where scientists who "eavesdropped" on a restored coral reef in indonesia say their recordings of fish "whooping, croaking and growling" are the reef coming back to life. take a listen to this. over a decade, the reef has been re—seeded with new corals. the researchers used underwater microphones to record.