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Between mass tourism and the Internet, it's never been easier to learn about other cultures. Yet we often stay on the surface. Watching the Olympics opening ceremony a few weeks ago, I was struck by how much of what was presented as quintessential Britishness came from pop culture — James Bond and Mary Poppins and the chorus to "Hey Jude." Although Britain had a global empire not that long ago, the show's director, Danny Boyle, grasped that the world's image of his green and pleasant land now largely derives from movies and songs.

When the Supreme Court ruled on the landmark Citizen United case in 2010, the landscape of presidential elections shifted. SuperPACs — entities that can't make direct contributions but are allowed to engage in limitless spending and fundraising independently of the campaigns — have allowed for the some of the largest indirect gifts by wealthy Americans in the nation's history.

Obama is on record as opposing superPACs for normalizing gigantic donations, but his campaign has hesitantly decided to accept donations from these outside groups.