The fact he cannot say it, means the nation cannot identify the domestic problem.
It also reveals Obama to be a Muslim, for he has NO problem saying “Radical Christianity”.
So if he did say it, he would no longer be Muslim?
Both you and I and for that matter he knows what the problem is. And it’s not just radical muslims as we’ve had mass shootings in the recent years by non-Muslim perps. It’s nutty, hell bent people.