The Private Securities Litigation Reform Act of 1995 added the requirement that a plaintiff must plead facts giving rise to a "strong inference" of scienter.
ðə pɹˈaɪvət sᵻkjˈʊɹɹᵻɾiz lˌɪɾɪɡˈeɪʃən ɹᵻfˈɔːɹm ˈækt ʌv nˈaɪntiːnhˈʌndɹɪd nˈaɪnti fˈaɪv ˈædᵻd ðə ɹᵻkwˈaɪɚmənt ðˌæɾə plˈeɪntɪf mˈʌst plˈiːd fˈækts ɡˈɪvɪŋ ɹˈaɪz tʊ ˈeɪ "stɹˈɔŋ ˈɪnfɚɹəns" ʌv sˈaɪəntɚ.