http://www.prwatch.org/node/9396-snip about Koch brothers history-
Pulling Strings in Secret: Koch-Funded Front Groups Galore
For decades, the Kochs have been quietly applying their massive wealth to influence U.S. policy in ways that keep the public from detecting the extent of their involvement. The New Yorker explains that the Koch's long-time strategy is to form "slippery organizations with generic-sounding names" that "make it difficult to ascertain the extent of their influence in Washington." Americans for Prosperity is one of those organizations. It turns out, there have been quite a few.
Tea Party Support
While the Kochs have tried to distance themselves from the Tea Party movement, their support for it is evident. David Koch indicated his agreement with the Tea Party when he said it demonstrates the "powerful visceral hostility in the body politic against the massive increase in government power, the massive efforts to socialize this country."
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Afoul of the Law
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Championing Cancer
After he was diagnosed with prostate cancer in the early 1990s, David Koch started giving large financial donations to cancer research. In 2004, then-President George W. Bush appointed him to the National Cancer Advisory Board, which gives guidance to the National Cancer Institute. At the same time David Koch was acting as a champion against cancer, though, his company, Koch Industries, was lobbying to stop the U.S. Environmental Protection Agency (EPA) from classifying formaldehyde -- a chemical his company produces in large quantities -- as a known human carcinogen.
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The Kochs Strike Back
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The Media Needs to Do Better in Exposing Front Groups
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shine the light on the scum