Unless you're DOE biologist Peter Larsen at the Argonne National Laboratory, who would probably argue your legal tender has been double-headed all along.

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The likeliest outcome is a double-headed regime, with the Fed as a stability regulator for large financial institutions of all types, and the SEC policing investor protection.

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The Transport Committee (at 10.05am) has a double-headed session covering road safety, with junior Transport Minister Mike Penning and then moves onto flight time limitations - the acceptable hours for pilots and aircrew.

BBC: Week ahead in Parliament

Hightlights include a double-headed session of the Home Affairs Committee on drugs and extradition (at 11am) and another double-header from the Transport Committee starting at 9.35am with evidence on whether new EU proposals to regulate the number of hours that pilots fly will compromise aviation safety.

BBC: Week ahead in Parliament

And the Public Accounts Committee has a double-headed session with top civil servants - first (at 3.15pm) they're looking at the issue of accountability with the Cabinet Secretary, Sir Jeremy Heywood and Sir Bob Kerslake, head of the Home Civil Service and Permanent Secretary at the DCLG.

BBC: Week ahead in Parliament

Anemic job growth and falling retail sales have many worried the global economy is headed for a double-dip recession.

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Understanding that you want passage of this bill, is the White House genuinely concerned at this point that the economy is headed towards a double-dip recession?

WHITEHOUSE: Press Briefing by Press Secretary Jay Carney

Sergio Ramos gave the world and European champions an early lead which Cesc Fabregas failed to double when his first-half penalty was saved -- leaving the visitors to earn a deserved point when Olivier Giroud headed home deep in stoppage time.

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