I know little about how a port is run (try Matt Yglesias and Dan Drezner for contrasting perspectives), but my take is simple. If Arabs have a role in running our ports, we will, rightly or wrongly, be more worried about port security. Might we institute tougher inspection requirements for containers? If the deal is approved, I predict port safety will go up, and this would be in lieu of a rather stagnant status quo. Perhaps we should go further and send some equity shares in the Port of Baltimore to Osama bin Laden, no? The funny thing is, if you haven’t been reading MarginalRevolution for a while, you probably think I am joking.