> in the Cabinet Room.
This pretty much IS the Cabinet now.
>So they have a high terminal velocity
Yes, very high. There is also considerable speculation that they are designed so that the formation of the shock wave at particular altitudes negates atmospheric drag, increasing velocity to that near speeds in a vacuum.
See "area rule" and read up on how shock waves are harnessed to enhance speed and performance, particularly in hypersonic vehicles at high altitudes.