I thought they backed off on this silly thing when it was demonstrated that someone behind a large metallic sheet could defeat it?
In this case, tinfoil CAN stop the government's rays.
So can a 1970's Navy "Coverall, Microwave Radiation Protective", widely available surplus, an all-covering garment with hood that would completely negate this thing. It's mesh, acts like the grid in a microwave door, was meant for techs working on radar while it was active. If it could stop you from being burned by a full-power dish emitting, it could easily stop this.
And lastly, if this were used as a perimeter barrier, someone could bypass it by being under a cardboard box lined with tinfoil. Metal Gear's eternal cliche, for real.
That'd be my concern with this. That it can be negated with cheap, easily-available materials like metal sheeting, mylar, even tinfoil, and that OUR guys will get killed as a result of resourceful terrorists bypassing something our soldiers are told will stop them.
I think it's a big waste of money, and I hope none of our guys get killed as a result of believing that it's more effective than it is.