important moment for the u.s. to tell viewers what you are learning. this is about to be a major announcement that we hear directly from president biden. we expect that president biden will be addressing the nation around 7:30 tonight. is senior administration official told us this was a counterterrorism operation of a significant al qaeda target. we are learning this was in fact, ayman al-zawahri. the senior official also noted that the successful operation did not result in any civilian casualties. keep in mind, this comes about one year after the u.s. withdrew fully from afghanistan. of the last military plane leaving afghanistan in august of last year. this will raise questions that perhaps, the president, himself, will address on how the operations were conducted, given no u.s. military prison in afghanistan. also, what the assurances are that we hear from the president, himself, on the note that there was no civilian casualties. the president has been isolating becaus