Mr. Jenkins and the firm’s chairman, David Walker, told politicians on Tuesday that they were prioritizing ethics and reducing risky trading activity, adding that they would take responsibility if future problems were discovered at the bank. The Barclays’ chief, who agreed to forgo his bonus in response to the series of scandals that have hit Barclays in recent years, said he would resign if another scandal was uncovered while he was leading the bank. “The chief executive is responsible for what happens during their tenure and when incidents happen the price needs to be paid and I believe were I to find myself in that position I would do the right thing,” Mr. Jenkins said on Tuesday. When politicians asked Mr. Jenkins if he was eradicating the culture that he inherited from his predecessor Robert E. Diamond Jr., Barclays’ new chief said he was indeed “shredding that legacy” of sometimes being “too self-centered and too aggressive.” [Dealbook, related]