The Justice Department is seeking the dismissal of Twitter's lawsuit in which the social-media firm is challenging restrictions on revealing information about national security requests for user data, the Washington Post's Ellen Nakashima reports: "At issue is a letter issued in January 2014 by the Justice Department relaxing limits for companies wishing to disclose the number of such requests they receive. Twitter, which was not among the five firms that negotiated the new limits with the department, thought they were still too strict." The government says that the letter does not restrict Twitter's free expression.