Why does the US allow dual citizenship?

Why does the US allow dual citizenship?  Many countries, other than the United States, usually restrict the opportunity for their people to become dual citizens. In the United States, however, there are no specific rules or laws that define the status of dual...

How to get dual citizenship for a child?

How to get dual citizenship for a child?  If you want your child to be a citizen or national of two countries, that is very easy to achieve. The practice of moving to another country such as the US to give birth to a child is called birth tourism. So what are...