Ten U.S. states have legalized systems that can be plugged into standard wall outlets. The technology typically does not require permits or electricians.
Amazon joined a procession of tech giants that ramped up their spending on artificial intelligence, as its capital expenditures soared 69 percent. Concerns over the industry's spending are mounting.
An appeals court in Canada acquitted Brandon Klayme of child pornography-related charges. His Kik username had one less underscore than another account that was involved.