I'm surprised Trump can still use his arm, from being so sore and tired from patting himself on the back so often and so much. He's beyond douche baggery....
The first step in preventing this threat from happening, is to listen to intel and the videos that ISIS sends, with the actual threats of what they intend to do, and to
TAKE THEM SERIOUSLY.
http://www.allenbwest.com/matt-palumbo/days-before-orlando-attack-isis-issued-this-warning 
Ignoring the threat(s) has worked out, how well?
Our govt is running around like the keystone cops and then shrugging
after the fact, like they had no idea and no way to fix it, other than confiscate law abiding citizens guns.
Then they use it as a political prop to push an agenda that has nothing to do with what happened.
Banning Muslims won't solve this problem, when this guy was BORN HERE. But we should stop them from coming here, refugee wise and other, until we can determine who is who and whether they pose a threat.
But in my honest opinion, America should not allow MOSQUES of any type, to be built. I don't give a rats ass about political correctness, or free speech, or freedom OF religion, etc. When it's proven again and again and again, that these mosques are breeding grounds for terrorists, MUSLIMS, to coordinate, indoctrinate and PLAN to terrorize and attack AMERICA on our soil, they shouldn't be allowed to exist. The whole presmise of Islam, isn't a "religion", it's a very evil, very satanic political ideology. And until THAT is addressed for exactly what it is, and the whole myth of it being any kind of "religion" is dispelled, than it should be dealt with, just like Communism, or Marxism, or Socialism has been dealt with (and should continue to be dealt with). I'm sure there are a few Muslims who live here who aren't planning on doing any harm, but considering the state of the world today, and the threats we face, and how the majority of Muslims are Islamic and the majority of Terrorists ARE Muslims, it's just common sense, to start taking all Muslims and investigating every single one of them. I don't care if they are legal American citizens...as we're seeing time and time again, these people come here to infiltrate and change OUR culture, and OUR traditions and OUR way of life. Islamists believe in conversion or die...and they plan to either convert everyone to their false evil ideology or to kill all thsoe who don't. It can't be any more clear than that.
ISIS in all it's forms, MUST be eradicated, where ever it is. And most especially on OUR soil. Our government isn't doing enough. And of course, recognizing and calling it by it's name, is a start.
I know I'm pissing in the wind here, and our government is not only ignorant and blind on these matters, but they are complicit as well. So that in and of itself needs to be the first thing "fixed" to solve and prevent this crap from happening. But if the world was a sane place, that's what I say needs to be done to start fixing this mess.
And building a wall, is but a speck of sand to what really needs to be done. Sadly, Trump has no clue, to the depth and greatness of the threats we face. He's just giving sound bites to what people want to hear. He's as clueless as the rest of the dopes in DC.
