"Well they certainly will be doubtful of it unless President Obama makes a strong argument.

VOA: standard.2009.09.22

But the Scottish secretary's job, which will be of doubtful value once all law-making and spending responsibility has been passed to the Scottish parliament, looks to have been made completely redundant by the new committee.

ECONOMIST: The constitution

It has to be doubtful whether the people of Greece, Spain, Portugal and Italy will wait that long.

BBC: Britain lined up as Europe's fall guy

One clear danger is that they may alienate customers, who will welcome better service but may be more doubtful about uses of the technology such as finely segmenting the market or targeting customers individually.

ECONOMIST: Always-on people