SAC HQ “sequestered” a very large number of active duty military members with exceptionally high security clearances, during a “Carter visitation” to Offutt AFB.
And none of us were openly armed with DOD issued weapons!
Carter was the first POTUS who needed to do this, to my knowledge.
Obama is only the second. And yes, it is needfull, from an unconstitutional, anti-USA CINC perspective.....
I was attending the USAF Academy when JFK was assassinated in 1963. We had fully functional M-1 rifles at the time. Shortly afterwards, all of the firing pins were quietly removed, thus disabling them. This was for the Secret Service’s peace of mind I suspect. Later on my son reported that the barrels were “plugged”, a common method of “DE-militarization”.
I suspect removing the bolts, as in this case, is an easily reversible method of making the weapons “safe” for dignitaries watching military parades, etc. unlike the more permanent disabling of the weapons described above.