There are also ring-fencing proposals being made in France, Germany, and by the European Commission.
They all adhere to the "ring-true" standard of sociology rather than the falsifiable standard of physics.
The Conservatives argue the Welsh government is wrong not to ring-fence health spending in the budget.
By contrast, Mr Cameron has already pledged to ring-fence the education, health and international aid budgets.
Certain budgets have been ring-fenced, including those for the NHS, schools and overseas aid.
Among the other proposals being considered are plans to ring-fence those assets on banks' balance sheets.
They want to see the freed-up spectrum ring-fenced for High Definition TV on the Freeview platform.
Thirty-two are atolls (ring-shaped islands with a central lagoon) while Banaba is a raised coral island.
The hardware is cheap and small, so a radio can fit into a ring-size device.
"Whatever investment we have we should ring-fence the money and invest it, " he said.
Even five molecules linked together pentamers, as they are called form a ring-like figure with no depth.
Take Pearl, a houseboat that features a clear dome-shaped topper and a teak ring-shaped deck.
Those deemed ring-leaders could be sentenced to as long as eight years in prison.
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He seems to see ring-fencing social spending as a way to cement his legacy.
Attempts to ring-fence factories from debts and other liabilities were rejected by the Koreans.
Madagascar is also home to 43 different primates, none better known than the ring-tailed lemur.
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Mr Fox urged an end to the ring-fencing of budgets for the NHS, schools and international development.
BBC: Budget 2013: Liam Fox urges spending freeze and tax cuts
The rupee debt market is ring-fenced from the outside world, which may have stopped sloppy habits immigrating.
Yet can religious faith, with its many political and social consequences, be neatly ring-fenced in this way?
In contrast to most other bank bosses, Mr Horta-Osorio supported the ring-fence when it was first proposed.
The most significant takeaway from the Vickers report is the idea of a ring-fence around retail banking.
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Conservative candidate Adrian Blackshaw said, if he was elected, he would ensure the PCSO budget was "ring-fenced".
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In its report, the OECD also backed Chancellor George Osborne's decision to ring-fence banks' retail and investment arms.
Glyn Davies (Mid and West Wales, Con) wanted to know the FM's policy on ring-fencing local authority budgets.
BBC: NEWS | Programmes | BBC Parliament | Wales: First Minister's Questions (27/04/04)
Since he ring-fenced the currency, the ringgit, with capital controls in September last year, the economy has recovered.
The Police and Crime Panel approved the rise, and said the money should be ring-fenced for extra officers.
They all want a shot at the brass ring--aiming to become public companies by the end of the year.
The pair also backed the chancellor's call for the break-up of banks that did not implement the ring-fence properly.
Although Erste Bank inherited clean, ring-fenced assets, it took time to coax its once-bitten, twice-shy staff into lending again.
Cassanges went on to become a well-known kite-maker, developing a series of ring-shaped kites to celebrate the Olympic Games.
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