Objects in image: Mobile phone
Text visible in image: AT&T, LTE, 2:28, PM, 44%, Home, Welcome, back!, You, haven't, been, to, Chicago, O'Hare, International, Airport, (ORD), since, March, '12., Back, in, Illinois, Airport, (ORD), This, place, is, swarming!, That's, 7, straight, weeks, at, Airports., You, set, a, new, record!, You, are, here, (195, others), Share, Security, terminal, IS, shorter, line., tips)
Question: what is the big button at the bottom?
Answers: share, share, share, share, share, "share", share, share, share, share button