Short version:
Guy set up his Wi-Fi network without a password.
Federal agents, armed with a search warrant, stormed his house, pointed assault weapons at him and called him a pedophile. They seized his computer, and his wife's iPad and iPhone.
After three days, they concluded he was innocent.
A week after the raid, his neighbor was arrested; turns out the neighbor was using the innocent guy's Wi-Fi signal to download child pornography.
More details here: http://o.seattletimes.nwsource.com/html/nationworld/2014867387_wifi25.html
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