PRI's The World Published by PRI's The World 9/11 families can now sue Saudi Arabia. That could 'open the floodgates' for suits against the US. Listen Queue Download this audio Want to embed this player? Use the code below. More info. <iframe frameborder="0" scrolling="no" height="130" width="100%" src="https://www.wnyc.org/widgets/ondemand_player/wnyc/#file=/audio/json/667962/&share=1"></iframe> Share on Facebook Share on Twitter Email a Friend A US congressional vote to allow the relatives of 9/11 victims to sue the Saudi Arabian government over alleged connections to the attacks could open the US up to retaliatory cases, according one legal expert.