An undercover video released Monday shows a senior executive at Twitter promising the company will step up its efforts to ban or curtail users of the platform. “One of the interesting things is a lot of the work that we’ve been doing over the last week is work that we’ve built on in other places around the world, where we’ve seen violence unfold as a result of either misleading information or coded rhetoric,” Vijaya Gadde, Twitter’s legal, policy and trust & safety lead, says in the footage, which is dated Jan. 8, after Twitter suspended President Donald Trump but before it permanently banned him. Gadde and Twitter CEO Jack Dorsey said they’d read a letter from Twitter employees calling to ban Trump but said they saw how the president had returned from the suspension trying to “deescalate the situation.” That “has been helpful and important for some, if not all of …