The economy needs the help that the JOBS Act will provide, and we need to continue to work toward it having its intended effect while protecting those who will invest as a result of it.

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Barring major technological developments, though, nuclear power will continue to be a creature of politics not economics, with any growth a function of political will or a side-effect of protecting electrical utilities from open competition.

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In return, the states, in effect, were protecting the big tobacco companies from competition.

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Politicians, determined not to be seen as doing favours for Wall Street, might blunt the programme's effect in the name of protecting the taxpayer.

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But some experts worry that social media may give lenders another way around the rules of the CARD Act that took effect two years ago, aimed at protecting young consumers.

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Just to take your own examples, who can tell what the effect on the carbon balance will be of protecting some rainforest in Bolivia?

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