For some unremembered reason, some proportion preferred to forego the additional protection, necessitating the order.
In the current circumstance, it could be anything from non "certified" body armor/insurance bureaucracy, Interceptor
screaming to either DoD or US Reps in the districts of their factories, or even Interceptor's competitors making waves.
Maybe Linda Daschle is a lobbyist for one of the companies. She doesn't do the country or taxpayers any favors. She
gets paid to push bad deals or bad products on the country.
I remember reading a book about helicopter operations in Vietnam called "Chickenhawk". One of the pilots was killed by a bullet through the chest, he did not have a plate, neither did anyone else in the unit despite repeated requests for them. Later the author was transferred to another unit, they all had the insert plates and plenty extra lying around in boxes unused.