2/25/2011--Public Law. (This measure has not been amended since it was passed by the Senate on February 15, 2011. The summary of that version is repeated here.) FISA Sunsets Extension Act of 2011 - Amends the USA PATRIOT Improvement and Reauthorization Act of 2005 to extend until May 27, 2011, provisions concerning roving electronic surveillance orders and requests for the production of business records and other tangible things. Amends the Intelligence Reform and Terrorism Prevention Act of 2004 to extend until May 27, 2011, a provision revising the definition of an "agent of a foreign power" to include any non-U.S. person who engages in international terrorism or preparatory activities ("lone wolf" provision).