Former execs accused of marketing faulty lead test devices

BOSTON — Three former executives of a company that makes machines that test lead levels in humans deliberately concealed a problem with the devices that produced falsely low results for tens of thousands of children, federal prosecutors in Boston said Wednesday. The children, as well as pregnant people and others, faced serious health risks because of the inaccurate test results, prosecutors said. Amy Winslow, Reba Daoust, and Mohammad Hossein Maleknia — all former executives at Magellan Diagnostics Inc. — were charged with conspiracy to commit wire fraud, wire fraud, conspiracy to defraud an agency of the U.S., and introduction of…