And then there's the public's newfound concern over global warming and its supposed commitment to do something about it.

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"They've made some commitment to do something about it but not enough and I'm frustrated about that but I'm sure we will get somewhere in the near future, " she said.

BBC: Bradley Manning

Dr. Koop's commitment to education allowed him to do something most physicians can only dream of: improving the health of millions of people worldwide.

CNN: Former Surgeon General C. Everett Koop dies at age 96

The Europeans, who actually want to do something about the problem, have therefore attached a condition to their possible second commitment.

ECONOMIST: Climate-change talks

But we go forward with confidence because we have something that our adversaries do not -- we have a commitment to seek a future of justice and peace and opportunity for the Afghan people.

WHITEHOUSE: President Obama and President Karzai Press Availability