Denver

We got to Denver last night at 6pm, ate supper and to bed by 9pm.
Up at 2:20am to be at the airport by 3.
Nobody's here to check out luggage.
We are talking to a guy who's been to China before-right now he's telling us about the time he went to Shenzhen (where Isabella is from). He says it's very clean, nice parks, a technological city. In the last few years it's gone from 20,000 people to 2 million! He's also on his way to Beijing via Chicago.
I've been trying to load pics on here this morning- it's not letting me.
How is airport wifi different than regular wifi?