Comcast just made a major addition to its Washington-based public policy operation by snagging one of Wall Street’s more highly regarded analysts, Stifel Financial’s Rebecca Arbogast. A specialist on legal and regulatory matters, on Sept. 19 Arbogast will become VP Global Public Policy, where she’ll help to shape all of Comcast’s public policy initiatives. She’ll report to Kyle McSlarrow, the former head of the National Cable & Telecommunications Association lobby group who’s now president of Comcast/NBCUniversal for Washington, DC. Before joining Stifel, Arbogast worked at Legg Mason’s Capital Markets Group and was chief of the FCC’s International Bureau Telecommunications Division. The Yale Law School grad also served in the Justice Department’s Office of Legal Counsel after beginning her career as a corporate attorney with Wilmer, Cutler and Pickering.