The Ad Industry’s A.I. Reckoning

The chairman of the Senate Intelligence Committee said hackers listened to phone calls and read texts by exploiting aging equipment and seams in the networks […]

The president-elect cares about financial markets, our columnist says. That gives investors a restraint on his decisions, even if it’s a tenuous one.

But high medical costs contributed to results that disappointed Wall Street, and the company’s stock fell on the news that it had made less than […]