FISA Improvement Act of 2007

FISA Improvement Act of 2007 - Amends the Foreign Intelligence Surveillance Act of 1978 (FISA) to authorize the Attorney General (AG) and Director of National Intelligence to jointly authorize, for periods up to one year, the targeting (electronic surveillance) of persons located outside the United States to acquire foreign intelligence information. Requires specified targeting and surveillance minimization procedures to be followed, with Foreign Intelligence Surveillance Court (Court) review of such procedures.

States that chapters 119 (Wire and Electronic Communications Interception and Interception of Oral Communications) and 121 (Stored Wire and Electronic Communications and Transactional Records Access) of the federal criminal code and FISA shall be the exclusive means by which electronic surveillance and interception of domestic communications may be conducted.

Requires the AG to submit semiannually to the congressional intelligence committees copies of any orders of the Court or the Foreign Intelligence Surveillance Court of Review that include significant construction or interpretation of FISA.

Revises generally provisions concerning the application for, and issue of, Court orders. Allows the AG to authorize the emergency employment of electronic surveillance under certain circumstances, including: (1) determining that an emergency exists; (2) informing a Court judge of such determination; and (3) applying for a Court order authorizing such surveillance. Provides similar authority an outlines similar procedures for the emergency employment of a physical search.

Requires the AG, after authorizing the installation and use of a pen register or trap and trace device on an emergency basis, to apply to the Court for an authorization order within 168 (current law requires 48) hours after the emergency installation and use.

Authorizes the Court to sit en banc when: (1) necessary to secure or maintain uniformity of Court decisions; or (2) the proceeding involves a question of exceptional importance.