Six people have been indicted by a grand jury in Washington state on charges they bribed Amazon employees to manipulate third-party seller listings on the e-commerce site, including listings for defective or dangerous products, authorities said. Starting in 2017, the people, including two former Amazon employees, paid more than $100,000 to have listings of products and accounts that Amazon had blocked or suspended from its Marketplace, which allows third-party sellers to promote and sell their products, the Department of Justice said. The former employees also provided internal Amazon information that allowed attacks on other third-party sellers and their accounts, including...