H.Amdt.588 - An amendment numbered 24 printed in Part B of House Report 116-154 to allow victims and families of the 1983 terrorist attack at the U.S. Marine Corps Barracks in Beirut, Lebanon to execute on $1.68 billion in Iranian funds. Requires the Director of National Intelligence to submit a report to Congress to assess the current threats posed by known terrorist organizations affiliated with the Iranian government against U.S. military assets and personnel.