With unrestricted immigration across open [non]borders.
Some of the recent Daesh-inspired attacks have been across borders, but a lot of them have been committed by citizens of the countries where they occurred. A border only helps you if the enemy is on the other side of it.
By defending Mohammedism as the ultimate religion of peace, no matter what Mohammedans do in the name and by the teachings of Mohammed.
I'm an atheist, so I don't see any religion as fundamentally peaceful. I do applaud people who try to make peace, and I don't think it's going to ever help us to malign entire groups as collectively culpable. One of your fellow Christians here just proposed the largest war in all of human history, and none of you seem to feel like calling that out.
By disarming as many Americans as possible and by making lawful gun ownership as onerous as possible, and by forbidding the profiling of likely terrorists.
What are you gonna do? Shoot the bomb? You guys have all the faith in the world in your weapons, but no understanding of their limits, and that's as worrying as anything else.
Notice carefully...he doesn't say "do everything possible to prevent attacks," he says "minimize the impact." That tells you he thinks some murders by Mohammedans are acceptable. Kinda like the Mayor of London, the Mohammedan who I believe said Mohammedan terrorism is just a fact of life.
No, that means that it's possible to prevent some attacks, and not possible to prevent all attacks.