ProPublica is a nonprofit newsroom that investigates abuses of power. Sign up to receive our biggest stories as soon as they’re published. These highlights were written by the reporters and editors ...

New mothers say they had to undergo devastating investigations after hospitals reported their false positive drug tests to child welfare agencies shortly after they gave birth. This report is ...

Which drug tests are best? There are many reasons for a portable drug test. Some businesses require drug tests for employment or following an on-site accident. School sports teams may do a random ...