“On May 26, 2011, Congress passed a four-year extension of three expiring Patriot Act provisions without making much-needed changes to the overly broad surveillance bill. The extended provisions are set now set to expire on June 1, 2015. Despite bills pending in both the House and the Senate to amend the three expiring provisions and other sections of the Patriot Act, Congress decided instead to move ahead with a straightforward reauthorization.

The three expiring provisions of the Patriot Act give the government sweeping authority to spy on individuals inside the United States, and in some cases, without any suspicion of wrongdoing.

1. Section 215 of the Patriot Act authorizes the government to obtain “any tangible thing” relevant to a terrorism investigation, even if there is no showing that the “thing” pertains to suspected terrorists or terrorist activities
2. Section 206 of the Patriot Act, also known as “roving John Doe wiretap” provision, permits the government to obtain intelligence surveillance orders that identify neither the person nor the facility to be tapped.
3. Section 6001 of the Intelligence Reform and Terrorism Prevention Act of 2004, or the so-called “Lone Wolf” provision, permits secret intelligence surveillance of non-US persons who are not affiliated with a foreign organization”.

(Source: ACLU website)