topic choice for final paper

my topic will be Separation of Church and State as related to the Pledge of Allegiance and reciting it in schools and government functions

my questions:

1)who does this subject effect?

2)why is it important to separate God from our schools, state run businesses, and governments by restricting our right to recite the Pledge of Allegiance in these places?

3)what is the benefit/importance of keeping religion or belief in our schools, state run businesses, and governments by restricting our right to recite the Pledge of Allegiance in these places?

4)will there be any lasting secular effects from either outcome?

5)are other countries in the world that have been known to include religious matters in government institutions exercising separation or are they continuing with the traditional practices of their forefathers?