We are scholars of constitutional law and former government officials. We write in our individual capacities as citizens concerned by the Bush administration's National Security Agency domestic spying program, as reported in The New York Times, and in particular to respond to the Justice Department's December 22, 2005, letter to the majority and minority leaders of the House and Senate Intelligence Committees setting forth the administration's defense of the program.

This letter is a bit repetitive due to its structure, but the legal explanation offered here is relatively clear and concise.

On [Domestic] NSA Spying: A Letter To Congress