Ex-NSA Analyst J. Kirk Wiebe recalls: "everything changed at the NSA after the attacks on September 11. The prior approach focused on complying with the Foreign Intelligence Surveillance Act ("FISA"). The post-September 11 approach was that NSA could circumvent federal statutes and the Constitution as long as there was some visceral connection to looking for terrorists." While another ex-NSA analyst also remembers: "The individual liberties preserved in the US Constitution were no longer a consideration [at the NSA]."