Ever feel like someone is watching you? The Federal Trade Commission finds you could be right — if you've used a rental computer. iStockphoto hide caption

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Thomas Peterffy, shown here in 2010 Brendan Smialowski/Getty Images hide caption

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Episode 396: A Father Of High-Speed Trading Thinks We Should Slow Down
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For $75, This Guy Will Sell You 1,000 Facebook 'Likes'
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Pizza Delicious Bought An Ad On Facebook. How'd It Do?
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