Today's Washington Post reports that the American Civil Liberties Union is dropping its lawsuit challenging the constitutionality of provisions of the USA Patriot Act, citing "improvements to the law" recently made by Congress.

"While the reauthorized Patriot Act is far from perfect, we succeeded in stemming the damage from some of the Bush administration's most reckless policies," Ann Beeson, the New York-based associate legal director of the ACLU, said in a written statement.

UPDATE: The ACLU press release is here.