Brian explains, though, why any global tax would be a mistake.

FORBES: Should International Bureaucracies Get Taxing Powers or Direct Funding?

What's worse, the Fed's mistake has had global implications.

FORBES: Greenspan Et Al. Still Don't Get It

"One Ford is a good thing on paper, but you'd better execute it properly, or you could have a big mistake, " says Global Insight's John Wolkonowicz.

FORBES: Back To The Future

Other big Japanese shareholders may yet come to Mitsubishi's rescue, but given the bloated state of the global auto industry, that would be a mistake.

FORBES: Better Off Dead

Later units will have Global Positioning System chips to eliminate the common mistake--caught by software on Bolofsky's site--of failing to match the street address to a written description of where a car was parked.

FORBES: Get Your Tickets Fixed

Though she says she doesn't want to play the blame game, Lagarde does think it was a mistake for Treasury Secretary Paulson to let the global financial services firm Lehman Brothers fail last month because that led to widespread distrust among banks which then became reluctant to lend to each other.

NPR: G-7 Leaders: We'll Tackle Crisis Together

"If you're buying stock in a company that is banking its future on coal, you might be making a very expensive mistake, " warns Daniel Becker, director of global warming and energy policy at the Sierra Club.

FORBES: Companies & Strategies

Mr. RICHARD GREENFIELD (Stock Market Analyst, Fulcrum Global): I don't think they're going to make this mistake going forward.

NPR: DreamWorks Movie Studio Falls Short of Investors' Targets

Opening the meeting, Prime Minister Gordon Brown warned that any such scaling back would be a "serious mistake" and could risk causing another "downward lurch" in the global economy.

BBC: G20 proposes curb on bank bonuses

And a failure to meet our obligations would be a grave mistake that would have a grave impact on both the American economy and the global economy.

WHITEHOUSE: Press Briefing