FISA Sunsets Extension Act of 2010 - Amends the USA PATRIOT Improvement and Reauthorization Act of 2005 to extend through December 31, 2013, a provision granting roving electronic surveillance authority.
Amends the Intelligence Reform and Terrorism Prevention Act of 2004 to extend until December 31, 2013, 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).
Amends the FISA Amendments Act of 2008 to extend through December 31, 2013, certain additional procedures concerning the electronic surveillance of certain persons outside the United States for foreign intelligence information purposes.