Testifying at the hearing will be representatives of the NSA, the Federal Bureau of Investigation, as well as surveillance critic the American Civil Liberties Union and Judge James Carr, who formerly served on the U.S. Foreign Intelligence Surveillance Court. Carr has proposed changes to the court's processes that would allow judges there to appoint lawyers to oppose surveillance requests.
Several other lawmakers have also introduced bills that would limit the NSA's ability to collect data.
Representative Rush Holt, a New Jersey Democrat, introduced a bill last week that would release the Patriot Act and the FISA Amendments Act, two laws that give the NSA authority to conduct antiterrorism surveillance.
On June 19, Representative Sheila Jackson Lee, a Texas Democrat, introduced the FISA Court in the Sunshine Act, which would require U.S. officials to disclose most orders of the surveillance court that include "significant legal interpretation" of surveillance laws.
And on June 7, Senator Rand Paul, a Kentucky Republican, introduced the Fourth Amendment Restoration Act, which says that the U.S. Constitution shall not be "construed to allow any agency of the United States government to search the phone records of Americans without a warrant based on probable cause."
Grant Gross covers technology and telecom policy in the U.S. government for The IDG News Service. Follow Grant on Twitter at GrantGross. Grant's e-mail address is firstname.lastname@example.org.