When only one of the blood cultures is positive out of a set of 2 or more. The validity of this statement is directly proportional to the number of negative blood cultures and depends on the organism identified.
The Foreign Intelligence Surveillance Act (FISA) was introduced on May 18, 1977, by Senator Ted Kennedy and was signed into law by President Carter in 1978.
What was most shocking revelation was the fact that under the FISA court certification NSA was even authorised to spy on foreign-based political organisations including the Pakistan People's Party (PPP) from Pakistan and the Bharatiya Janata Party (BJP) from India.