State lawmakers across the country have been considering taxing prescription opioids. A look at what they would do:

ROME (AP) — Venice has installed temporary gates at the ends of two bridges to turn back tourists if their numbers become overwhelming.

NEW YORK (AP) — The use of a genealogy website to track down a suspected California serial killer illustrates both the extraordinary power of DNA-sharing services and the broad privacy concerns that surround the fast-growing commercial market for genetic analysis.

LIMA, Peru (AP) — Archaeologists in northern Peru say they have found evidence of what could be the world's largest single case of child sacrifice.

NEW YORK (AP) — Facebook is adding a "sleep" mode to its Messenger Kids service to let parents limit when their kids can use it.