Cops bought thousands of new Tasers that their data showed were less effective than old ones.

Tasers have become an essential tool for police, but how effective are they? An APM Reports investigation finds that officers in some big cities rated Tasers as unreliable up to 40 percent of the time, and in three large departments, newer models were less effective than older ones. In 258 cases over three years, a Taser failed to subdue someone who was then shot and killed by police.

People placed in adult guardianship can lose their right to vote, and in Missouri, this happens far more than in any other state.

Most of the country is making it easier for former felons to vote. But in the South, the number of voters removed due to felonies has nearly doubled in the past decade.

A handful of states, most of them led by Republicans, are increasingly using someone's decision not to vote as the trigger for removing them from the rolls. No state has been more aggressive with this approach than Georgia, where Brian Kemp, the secretary of state, oversaw the purging of a growing number of voters ahead of his own run for governor, according to an APM Reports investigation. Voting rights advocates call it a new form of voter suppression, and they fear it will soon spread to other states.