U.S.

Control of the Senate will come down to just a handful of races, and Nevada is the only seat Republicans have a real chance of flipping. Three-term Republican Sen. Joe Heck is running almost even with Democrat Catherine Cortez Masto. The race could come down to Hispanic voters, and Heck has tried to distance himself from Trump.

Protecting decades-old systems from hackers is like "trying to put air bags into an old car," the government's chief information officer says. The administration proposes $3.1 billion in upgrades.

The United States Penitentiary at Lewisburg, Pa., is one of the toughest, most violent prisons in America, where inmate-on-inmate assaults are common — and sometimes deadly.

Each year, the Chronicle of Philanthropy publishes a list of the biggest charities in the U.S. This year, there has been a change in the No. 1 spot that philanthropy watchers call "stunning."

Internet service providers will have to ask consumers before collecting and selling their data. However, the new rules do not apply to Google, Facebook and other tech giants.