SRL for [tasked]: NORAD , since its inception in 1958 , was [tasked] to monitor and intercept aircraft flying over American and Canadian air space seven days a week , 24 hours a day .
ARG-M-TMP: since its inception in 1958 | ARG-2: NORAD | ARG-1: to monitor and intercept aircraft flying over American and Canadian air space seven days a week , 24 hours a day