Moroccan officials said they were investigating several people in the country's impoverished north, a region once administered by Spain.

Investigating people who knew how to stay silent was a tough way to earn a living.

Donnie, I'm not investigating people who try to study for a classified test at home.

Federal authorities can and do investigate people who visit or download materials from such Web sites.

They would have to keep this information in case it needs to be used to investigate people.

She says Met officers may have to be investigating people they know.

"This is America," she said, "and we don't just go around investigating people haphazardly."

I'm sure Dixon Hill has investigated people who've killed for a lot less.

American officials said they were investigating people who never showed up, and that potential attackers might have been tipped off by news reports.

"An educational agenda has to be a lot broader than just investigating people."