After the 2004-2005 lockout, both sides understand how harmful a work stoppage would be to the game.
They say it's not just binge drinkers who are susceptible to liver disease: sharing a bottle of wine over dinner or having a couple of drinks after work may be harmful, too if the alcohol consumption is regular enough.
This is likely to confirm the prejudices of many here in Britain who believe that providing charity to Africa is a waste of time, and may be harmful to the hugely beneficial work done by many charities who work directly at the point of need.
And then with regard to the EPA, which is often under siege but is responsible for ensuring that the air we breathe, that our children breathe when they run out on the soccer field is clean and that the water they drink is clean and not harmful, do really important work.
The simple act of retrofitting these buildings to make them more energy-efficient --insulation new windows and doors, insulation, roofing, sealing leaks, modernizing heating and cooling equipment -- is one of the fastest, easiest and cheapest things we can do to put Americans back to work while saving families money and reducing harmful emissions.
"I find it challenging and rewarding to work out ways into the future which are not harmful to us, " he said.
Other doctors say it's OK -- and sometimes beneficial -- to prescribe something that hasn't been shown to work in studies, as long as it's not harmful.
It dates back to Keynes, one of the few economists whose reputation has been burnished by the crisis. (Another is Hyman Minsky, whose main insight was that stability leads to too much debt, and then to collapse.) Most work in macroeconomics in the past 30 years has been useless at best and harmful at worst, said Mr Krugman.
"Mayor Bloomberg's failure to work with labor unions and drop cooperation in favor of name-calling and vitriol has been harmful to our city, " Mr. Thompson said.
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