 The company has nearly 90 million cell phone subscribers. AT&T notified the FBI of the hack back in April, but was advised by law enforcement to wait to disclose it due to the investigation. There are new concerns about tampons, which are used by millions of people monthly. Researchers now say they may contain toxic metals, including lead and arsenic. WTOP's Lynn Bowie spoke with an OBGYN about whether tampons are safe.