Some states that stockpiled millions of masks and other personal protective equipment during the coronavirus pandemic are now throwing the items away. An Associated Press investigation found that at least 15 states have tossed out some of the PPE items because they are expiring or have more than they need. Other states have sold extra materials at bargain prices or have tried to give away surplus masks, gowns and gloves but have had difficulty finding entities willing to take them. Public health experts say the glut of supplies shows that governments need to do a better job of planning for future emergencies.