ɪn ˈɜːli nˈaɪntiːnhˈʌndɹɪd fˈoːɹɾi tˈuː, ɪn ɹᵻspˈɑːns tə ðə dʒˌæpənˈiːz ɐdvˈænsᵻz ɪnðə fˈɪlᵻpˌiːnz wˌɪtʃ θɹˈɛʔn̩d kˈæst, ðə pˌɑːsəbˈɪlᵻɾi əvən ɪnvˈeɪʒən ʌv həwˈaɪiː, ænd ðɪ ɪŋkɹˈiːsɪŋ dᵻmˈænd fɔːɹ ɪntˈɛlɪdʒəns, ɐnˈʌðɚ sˈɪɡnəlz ɪntˈɛlɪdʒəns sˈɛntɚ, nˈoʊn æz nˈɛɡæt wʌz fˈɔːɹmd ɪn wˈɑːʃɪŋtən, jˈuːzɪŋ ˈɛlɪmənts ʌv ˌoʊpˈiː twˈɛntidʒˈiː.
In early 1942, in response to the Japanese advances in the Philippines (which threatened CAST), the possibility of an invasion of Hawaii, and the increasing demand for intelligence, another signals intelligence center, known as NEGAT was formed in Washington, using elements of OP-20-G.