Two House subcommittees will be holding a joint hearing tomorrow (judiciary.house.gov/hearings/hear_090402.html) in an attempt to block the 287g program that allows local police to cooperate with the Department of Homeland Security to locate illegal aliens. The most famous use of 287(g) involves Sheriff Joe Arpaio; he isn't scheduled to testify, but two of those who are will be opposing his efforts specifically. In advance of the hearing, today the American Civil Liberties Union - a group that's directly collaborating with the Mexican government - called on the Obama administration to end the...