This is just plain not true. The roots of this nonsense can be traced back to Breitbart's shithole, but it's just not true that the school has armed guards.
Incorrect, Sidwell Friends has a security staff of 11, many of which are also police officers. They are armed.
I don't even know why that is important, but for some reason it is. There is a reason that armed guards are effective for Obama's kids, regardless of the reason they exist, and would be as well for ours.