Brother I dont agree with you,with this Belgium Example.1. Sure swizerland even more oficial languages,but there litteracy rate is very very high same with Belgium. 2. These countries are part of a groupe which have no enimies at their borders not only that,you show me any overt or covert interfierence of CIA,Mosad,MI6 or even KGB in Belgium which sports local splitter groups like BLA,TTP,and many others.Pakistan must need a commen language which unifies the country.Any division based on language,culture,race color,religion,Area,unjust division of Resources,ect ect our enemies will drive a wedge in there.Thats how British Raj was established and successfully run for 200 years in the subcontinent.For your information why you think Hongkong became British colony,becuse this is the only province of china which speaks cantonese where rest of china speaks mandarine.The british drove the wedge right in there.