Permanent ban AND start sending back what we have now.
Hey, if we're lucky, maybe Germany, Sweden, and the rest of dhimmfied Europe would accept them with open arms.
But short of that, the best we can reasonably hope for is 1) a permanent ban on all future Muslim immigration; 2) intense surveillance of mosques; 3) outlawing of any group (like CAIR) with any connections to terrorist orgs.