If we made a mistake, we'd just have to unpick it and do it right.
Congress still has to approve or reject such deals, but TPA means it cannot unpick them line by line.
But what happens when new members start to unpick some of the reforms they made during their accession process?
Psychologists Nicole Mead and Jon Maner ran a series of experiments to unpick this counter-intuitive tendency.
It is a Gordian knot the Chinese state has only begun to unpick.
It is hard to think of two writers better qualified to unpick Lebanon's complexities than David Hirst and Michael Young.
Mr McCreevy will have to unpick important bits of the budget in order to get it through parliament next month.
Castlepoint Partnership has been trying to unpick a complex web of insurance and permits to get a rebuild under way.
His approach is to see them regularly during their pregnancies, build up their confidence and unpick the causes of their fear.
Associates of the general are therefore desperately casting around for parliamentary support in the hope that they can unpick this alliance.
Investors will also worry if Mr Humala tries to unpick contracts under which private firms are upgrading ports, airports and roads.
As well as gaining an understanding of the complexities of animal behaviour, these studies are trying to unpick its evolutionary origins.
Earlier this year, he secured Trade Promotion Authority, which gives him the power to negotiate international trade deals without Congress being able to unpick them line by line.
The Italian Prime Minister, Mario Monti, raged against some of those northern countries after they tried to unpick elements of a deal struck at a summit last month.
The kind of reforms needed to regain growth and competitiveness will, if successful, unpick many of the stitches that have held Portuguese society together since the end of dictatorship in 1974.
So it has taken time to unpick the mwalimu'slegacy.
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Germany can afford to make concessions on some of the demands from the UK, but it cannot afford to unpick the key parts of the balance of power agreed in the constitution in 2004.
The US is unlikely to be offered more than a 20% role because to give greater participation starts to unpick all the definition work that's been done to date, and risks delaying the launch.
The early evolution of dinosaurs is difficult to unpick, as a rich variety of reptiles were proliferating at the time - and some may even have independently evolved characteristics that are associated with dinosaurs.
You can almost picture the plucky heroine trying to unpick the galactic conspiracy before someone loses an eye -- and if you've already cast weepy Clare Danes in the role, then you've already passed the entry exam to read Alt-week.
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At present unions in Brazil cannot strike the sort of deals that are common elsewhere, such as accepting pay cuts during downturns in return for no job losses, since individual workers may later ask the labour courts to unpick them.
In the centre of the park, Ferguson and Paul Lambert failed to live up to their pre-match billing, although it was clear they would have welcomed a De Boer or a Larsson ahead of them as they tried to unpick the Faroes' defence.
He and President George Bush may now find it difficult to obtain trade-promotion authority, formerly known as fast-track, from Congress: this enables the American team to work towards a deal and put it to Congress on a take-it-or-leave-it basis, rather than enabling the legislators on Capitol Hill to unpick it line-by-line.
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