I think that's a more challenging proposition for the average person than it used to be.

But "His Dark Materials" is a far more challenging proposition than its cinematic predecessors, and not only because of the complexity of its philosophical and scientific underpinnings.

All of which makes the prospect of promoting the rollicking game of American professional basketball in Britain a challenging proposition.

But as today's fashion, they are a challenging proposition.

"Smurfit has always been an intellectually challenging proposition for investors," Mr. Kiernan, the fund manager, said.

"Well, it is a challenging proposition."

"It's a challenging proposition," Kennedy said at a Nascar news conference here at the research-and-development facility.

The excavation would have to be done from behind the brownstones, an expensive and logistically challenging proposition.

Political continuity and stability would arguably be a key ingredient for any form of resolution where the eurozone is concerned but that is likely to be a pretty challenging proposition.

For many heads and governors LMS is an exciting and challenging proposition.