An overview of fed. law governing wiretapping and electronic eavesdropping. It also appends citations to state law in the area and contains a biblio. of legal commentary as well as the text of the Electronic Commun. Privacy Act (ECPA) and the Foreign Intell. Surveillance Act. The gov¿t. has been given narrowly confined authority to engage in electronic surveillance, conduct physical searches, install and use pen registers and trap and trace devices for law enforcement purposes under the ECPA and for purposes of foreign intelligence gathering under the Foreign Intelligence Surveillance Act. This report includes a brief summary of the expired Protect America Act, and of the Foreign Intelligence Surveillance Act of 1978 Amendments Act of 2008.