Thirty-three miners trapped underground for more than two weeks after a cave-in said they are all alive in a message tied to a drill, Chilean authorities said on Sunday.

Those 33 miners trapped in a Chilean mine should not drink or smoke, says NASA, which is advising officials on how to keep them safe.

There are PR opportunities, and then there are PR opportunities. "Now being Chilean is kind of like, 'Wow!'" said Maria Elena Bartsch Mittelmann, who advises foreign travelers visiting Chile.