Eric Niiler

An FBI pilot program to scan prisoners' eyes is under way in California, Texas and Missouri.

A self-correcting contact lens could eliminate the need for bifocals, trifocals or laser corrective surgery.

African Americans may have gotten the vote a century earlier, and Western cities might have looked a lot different, historians say.

Mob psychology feeds a need to belong — and police efforts can backfire.

U.S. Predators are operating from the border, though ground intelligence may hold the key.

Skiers at Sochi must combat slushy courses with secret wax technology.

Edward Snowden cited his conscience for whistle-blowing on the NSA, but maybe it was really payback.

War rhetoric follows a historic cycle, but what if the outcome was different this time?

Contractor may have had access to high-level imaging technology with potential military uses.

In an attempt to prevent the next Newtown, some schools are taking unprecedented measures.

Given that one in five Americans has some form of mental illness, how healthy are we?

Slower uphill riding times, red blood cell counts and more crashes in the peloton all point to a cleaner Tour de France.

Three American Navy fliers were buried in Antarctica after their plane crashed. Now explorers want to recover their remains.

As world leaders gather to assess the planet's health, most reports are gloomy, save for a couple bits of good news.

Turbines mix air at night and could affect local climate and farming.

While the worst may be over, the future is uncertain.