EgyptAir Flight 804 Broke Up in Midair After a Fire, Evidence Suggests

Investigators do not know, however, if the blaze that is thought to have caused the plane to come apart was an accident or caused by terrorism.

Feature: How a $2 Roadside Drug Test Sends Innocent People to Jail

Widespread evidence shows that these tests routinely produce false positives. Why are police departments and prosecutors across the country still using them?