There is a oil pipeline and some oil tankers prefer to pass through the SUEZ . Otherwise it's a long haul around AFRICA . Let's say if the BROTHERHOOD gets total control of EGYPT they could deny or charge large amounts of money for tankers to pass through , espcially those associated with EUROPE or the U.S..IRAN had to pay $250,000(?) to get through which is a 1st since 1979 . This possibly could be a hint of whom will be in control and those they side with . They also could use that money to buy weapons for their use and to sell to other groups fighting for the cause . Not a good scenario for us , Europe , Saudi Arabia , Israel , etc..