On a recent trip to India, British Prime Minister David Cameron justified the Afghan war by saying the troops are keeping Britain safe from terrorism.

VOA: standard.2010.08.04

If a firm is competing against a customer let's say for a non-prime loan perhaps that assumption is not quite so safe.

如果一家公司在和客户博弈,比如发放说次级贷款,可能假设不是那么完备

耶鲁公开课 - 博弈论课程节选

As he spoke to reporters in the Oval Office, Mr.Obama did not discuss the contents of the review, but he said he and Prime Minister Rudd agree that Afghanistan cannot be a safe haven for terrorists.

VOA: standard.2009.03.24