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Brad Rolfs, staff member of Sen. David Durenberger on Environment Affairs, shows a friends how to recycle cans in Dirksen Café at "Demo Recycling Machine", on June 10, 1991. (Photo by CQ Roll Call via Getty Images)

Brad Rolfs, staff member of Sen. David Durenberger on Environment Affairs, shows a friends how to recycle cans in Dirksen Café at "Demo Recycling Machine", on June 10, 1991. (Photo by CQ Roll Call via Getty Images)

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