Investors have been giddy about the prospect of InBev NV buying Anheuser-Busch Cos., but it could be a lot harder for the Belgian company to swallow the King of Beers than many imagine.
A host of factors could derail a bid: the cultural differences between the two brewers; potential unrest from Anheuser employees and distributors; and even protests by politicians over foreign ownership of a U.S. icon during an election year.