NAPLES, Fla.- Fire officials are raising concerns about events that use a colored powder made of cornstarch after a recent deadly explosion. The powder is often used in the popular color runs held ...

Brightly colored powders, shot into the air at running events and some concerts, are designed to breathe excitement into those events. But have you ever wondered how safe those powders are to breathe?

It sounds like such a great idea: Get a bunch of people together and celebrate love by hurling colored powder in the air. Like Christmas and Dyngus Day, the Hindu festival of Holi is just good fun and ...