If we are serious about reducing substance abuse, crime and recidivism, and saving taxpayers money, then we must accept that our criminal-justice system is filled with seriously addicted people who need treatment to change their behavior.

WSJ: The War on Drugs Itself Is Causing Most of the Damage

But she said downsides included cutting the substance of important issues by reducing them to 140 characters, being too busy to "really engage" with people and making voters who are not on Twitter feel isolated.

BBC: Social media and the PCC elections: Tweeting candidates

Birds have been found with the substance congealed on their feathers, reducing their waterproof coating and ability to stay warm and afloat at sea.

BBC: Seabird deaths substance 'identified as oil substance'

Tax expenditures distort our official data by reducing government tax revenues in the official scorekeeping, rather than being recorded in a manner consistent with their substance, as additional tax collections offset by government spending programs.

CNN: 3 ways to relieve our tax hangovers