I'm not going to write about the pope again. I just can't face it. But I'll offer you a related topic - things to know about condoms.
1) When used properly and every time, the male condom has a 3% failure rate. In typical use - not always worn right, and not every single time - the failure rate is 10-14%. reference
2) The female condom has a failure rate of 21% during typical use. reference
3) When a condom breaks, it generally happens because no space was left at the tip of the condom for ejaculate. A properly worn condom has a small reservoir at the end. reference