Here is the facts for dual citizenship for those who care. I am personally against the idea but this is what smart people say:

a) It is immoral, I wouldnt call myself a citizen of phalano desh and phalano desh too! Its like your name, you can only have one.

b) While dual citizenship attracts investments, most people do it to retain wealth in one or the other country and have a back-up plan. In most cases, its comes with visa restrictions. Think about how much Nepal makes from now foreign passport holders that used to be Nepali citizens/born in Nepal. I know a lot of people stick with green cards (I am not talking Nepalese specific here) and not get citizenship to save them entry costs at ports to Canada, Mexico etc.

c) In international criminal justice, the issue of dual citizenship will bring lots of controversy with how to prosecute a person of criminal wrongdoing. Some people like to have dual citizenship fearing persecution as a minority.

d) The population of the earth will mention two you's. So there will be one more(for each dual citizen) person on this planet than what the count is.

e) Elections- Like in Italy in 2006, mailed ballots had an impact on the national election itself. When people can want to exercise their citizenship rights, they will.

f) Dual citizenship advances overall participation- the business can run smooth- with no requirements for work permit and all, depends however on the host country where the immigrant is residing!

Thats just a few, have your say!