Bio: Sasha Issenberg is a national political reporter in the Globe's Washington bureau.  His first book, "The Sushi Economy: Globalization and the Making of a Modern Delicacy," was published in 2007 by Gotham Books.  He was previously a staff writer for "Philadelphia" magazine and has also written for "Slate," "Conde Nast Portfolio," "The Washington Monthly," "Inc.," Boston," and "George," where he served as a contributing editor.