demand for illegal drugs is in large measure responsible for the problem.

VOA: standard.2009.03.25

"If you measure the extent of the problem, you can manage the problem, " he says.

WSJ: Rise in U.S. Gas Production Fuels Unexpected Plunge in Emissions

Airlines say they most often pick trips randomly, and sometimes target problem flights to measure how employees responded to trouble.

WSJ: What United, American, Delta, Southwest, JetBlue, Alaska, Virgin America Airlines Learn From Customer Surveys

Obama -- who missed the Senate vote on the resolution but has said he opposes it -- said the problem with the measure was that it went beyond identifying the Revolutionary Guard as a terrorist organization.

CNN: Democrats spar in heated debate