 The Americans, who had by now tracked down "Ryūjō", were still actively searching for "Shōkaku" and "Zuikaku".Vice Admiral Fletcher was hesitant to send out squadrons for attacks on a lone light carrier without definitive news concerning larger Japanese fleet movements.The Japanese as a result launched planes from "Ryūjō" without harassment, sending the strike force out against Henderson Field while they waited for scouts to turn up the American fleet.