Gallup does a poll every year that centers around what things Americans think are morally acceptable or not. This year's results were just released and they include...

1.  Using birth control. 92% say it's morally okay.

2.  Divorce, 77%. That's the highest it's ever been since the poll launched in 2001. Back then, only 59% said it was okay.

3.  Sex before marriage, 71%. Again, the highest it's ever been.

4.  Smoking pot, 65%.

5.  Being gay, 63%. 67% was the all-time high last year.

6.  The death penalty, 60%.

7.  Wearing fur, 53%.  Down from 60% last year.

8.  Abortion, 42%. That one's held pretty steady over the years.

9.  Pornography, 37%. Down from 43% last year.

10.  Having an affair, only 9% of people think it's morally acceptable.

You can look at all the issues and results here.

(Gallup)