By MATTHEW LEE, NOMAAN MERCHANT and AAMER MADHANI, Associated Press WASHINGTON (AP) — President Joe Biden announced Monday that al-Qaida leader Ayman al-Zawahri was killed in a U.S. drone strike in Kabul, an operation he said delivered justice and hopefully “one more measure of closure” to families of the victims of the Sept. 11, 2001, attacks on the United States. The president said in an evening