The Foreign Intelligence Surveillance Act of 1978 (FISA) Amendments Act of 2008 is a law passed by Congress in the United States. It allows the government to collect information about people outside the US that they think might be involved in terrorism or espionage. It also makes it easier for the government to get permission from a special court to spy on people within the US. The law was created to help the government protect the United States from terrorism and to give intelligence agencies more authority to spy on possible terrorists.