I think selfishness is a big issue!!! At the heart of man is our sinful nature, so because of that, everyone has a tendency to look to his own interests and not the interests of others. Philippians 2:3-4 says "Do nothing out of selfish ambition or vain conceit. Rather, in humility, value others above yourselves, not looking to your own interests, but each of you to the interests of others." In my opinion, if we looked to others before ourselves, we could really help a lot of people! National debt is a big issue too though, I think if we could really focus on fixing that, our country would really thrive.