It was a lovely late summer afternoon at a beach in southern England. Sun, surf and not a cloud in the sky — until the strange "chemical haze" drifted in off the sea, that is. It was at that point the beachgoers found their eyes streaming tears and their throats growing sore, their gag reflex triggering as some began to vomit.
Then, the professionals in hazmat suits showed up.
More than a day later, authorities still aren't exactly sure what happened to people at Birling Gap beach on Sunday.