The tone of congressional hearings featuring tech industry executives in recent years can best be described as antagonistic. Mark Zuckerberg, Jeff Bezos and other tech luminaries have all been dressed down on Capitol Hill by lawmakers upset with their companies.But on Tuesday, Sam Altman, the chief executive of the San Francisco start-up OpenAI, testified before members of a Senate subcommittee and largely agreed with them on the need to regulate the increasingly powerful A.I. technology being created inside his company and others like Google and Microsoft.In his first testimony before Congress, Mr. Altman implored lawmakers to regulate artificial intelligence as members of the committee displayed a budding understanding of the technology. The hearing underscored the deep u …
