The Obama Department of Justice, Office of Legal Counsel released Bush era legal memoranda [all are pdf]:

Memorandum Regarding Status of Certain OLC Opinions Issued in the Aftermath of the Terrorist Attacks of September 11, 2001 (01-15-2009)

Memorandum Regarding Constitutionality of Amending Foreign Intelligence Surveillance Act to Change the “Purpose” Standard for Searches (09-25-2001)

Memorandum Regarding Authority for Use of Military Force to Combat Terrorist Activities within the United States (10-23-2001)

Memorandum Regarding Authority of the President to Suspend Certain Provisions of the ABM Treaty (11-15-2001)

Memorandum Regarding the President’s Power as Commander in Chief to Transfer Captured Terrorists to the Control and Custody of Foreign Nations (03-13-2002)

Memorandum Regarding Swift Justice Authorization Act (04-08-2002)

Memorandum Regarding Determination of Enemy Belligerency and Military Detention (06-08-2002)

Memorandum Regarding Applicability of 18 U.S.C. § 4001(a) to Military Detention of United States Citizens (06-27-2002)

Memorandum Regarding October 23, 2001 OLC Opinion Addressing the Domestic Use of Military Force to Combat Terrorist Activities (10-06-2008)

Due to public interest in this matter, the Department of Justice is releasing these documents in an inaccessible format. Accessible versions will be posted as soon as possible. If you have a disability and the format of any material on the site interferes with your ability to access some information, please email the Department of Justice webmaster at webmaster@usdoj.gov. To enable us to respond in a manner that will be of most help to you, please indicate the nature of the accessibility problem, your preferred format (electronic format (ASCII, etc.), standard print, large print, etc.), the web address of the requested material, and your full contact information so we can reach you if questions arise while fulfilling your request…

Pass the popcorn.