Should homosexuals be permitted to serve in the armed forces?

Yes.  Who people love to me is irrelevant to how they will perform as a soldier or frankly how they will perform in any job. The President has just recently lifted the ban on allowing gays to serve and the military has completed a study that it will not affect morale or military operation. Discrimination against gays is one of the last discriminations still allowed and sanctioned by U.S. Law and it is time for those laws to be changed. Have we not learned our lesson as a Country? Treating all people equal means treating ALL people equal. It is who we are as a nation and it is time that we live up to that.

Should mandatory (or voluntary) prayer be permitted in public schools?

This question touches on 3 constitutional issues. First, we clearly have to look at the separation of church and state. Second, we need to consider freedom of speech. Finally, we need to look at freedom of religion.

I think mandatory prayer would clearly violate the separation of church and state. Our government and public institutions need to not be in the business of religion. This is not to say that people should not be religious or able to practice their religion. Not everyone shares the same religion so in order to have freedom of religion you also must have freedom to choose your religion or choose none at all. Mandatory prayer in school clearly violates that.

Voluntary prayer in public schools to me is different as long as it is not directed by school employees in the classroom. Voluntary prayer between students themselves is freedom of speech and should be protected. It must not be disruptive or attempt to force one religion on another. I know I have prayed many times in school (usually before tests).