The U.S. committed to exchange for gold dollars held by foreign central banks and Treasuries (governments) while other countries used their dollar reserves to peg (i.e. manipulate) their currencies to the dollar.

FORBES: Currency Manipulation

With the help of a team of dietitians, he performed a small study on pregnant women to see if he could manipulate their diet to increase their vitamin E intake up to the recommended levels and, he says, "it worked a treat".

BBC: 'Super soup' test in asthma trial

The SIIA white paper says software sellers manipulate the rules of Internet auction sites to obtain e-mail addresses of bidders on software, creating a direct-marketing channel.

CNN: Technology - New online software piracy emerges

And since anybody can gain access to all proposals and e-mail discussions, the decision-making process is hard to manipulate.

ECONOMIST: The consensus machine