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This story is part of a series on commuting in America.

In The Innovators, Walter Isaacson explains that Pentagon officials wanted a system the Russians couldn't attack, and 1984 made the public wary of new technology's Big Brother potential.

San Diego researchers have built a lot of small portable pollution monitors that will let people do real-time monitoring of dirty air.

Airs Monday, July 11, 2016 at 9 p.m. on KPBS TV

Airs Monday, January 13, 2014 at 11 p.m. on KPBS TV

Airs Monday, June 20, 2016 at 9 p.m. on KPBS TV

States have long sought to restrict cellphone use by drivers because of safety concerns, and as the new year begins, several states are toughening their laws. It turns out it's a hard habit to break. And for government officials, it's not easy to stay ahead of tech advances.

All those millions of iPads and new iPhones it sold last helped push Apple past Google in the sixth annual BrandZ Top 100 Most Valuable Global Brands study.

Emily Johnson Dickerson died at her home in Ada, Okla., last week. She was the last person alive who spoke only the Chickasaw language.

Amazon, Google, Microsoft and others are competing to be the main landlords of the cloud. Their terms and prices could control who gets to build what on the Internet, and for how much.