Prisons and most policing have long been in the hands of state governments.

ECONOMIST: Getting caught is no problem for Brazil's gangsters

So long as you have both hands on the keyboard, "if you happen to have a crying toddler on your knee or you're groggy, we'll still recognize you, " says Imagic Vice President Craig Maszer.

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But while that trade show is closed to the public, the San Diego shindig allowed game makers to reach the socially active early adopters that Hollywood and other marketers have long coveted by giving them hands-on time with some of the biggest games of this year (and next).

CNN: 5 games to watch from Comic-Con