Oxfam America President Raymond Offenheiser: US signs historic arms treaty, Senate must ratify September 26, 2013 By Oxfam Post Share Share Oxfam America President Raymond Offenheiser: US signs historic arms treaty, Senate must ratify http://thehill.com/blogs/global-affairs/guest-commentary/324663-oxfam-america-president-raymond-offenheiser-us-signs-historic-arms-treaty-senate-must-ratify