"This is out of step with modern surgical practice, where a true team ethos and the need for constructive challenge are prerequisite, " the report said.

BBC: Hospital sign

Similarly, we can master any social challenge we choose, with markets that reward constructive innovation.

FORBES: Mike Gordon

"I think our challenge is that line from destructive criticism to constructive criticism, because there is going to be criticism, " Markos Moulitsas, founder of DailyKos.com, said in a recent interview.

CNN: Preston on politics: Blogging in the Obama era

O'HARA: Jeffrey White says the challenge is to bring the Sunni Arabs into the political process as constructive players.

NPR: Command and Control of the Iraq Insurgency