Winter and fuel
Much as I'd like to be an advocate for the Northern Arc, it has just struck me that it is Winter in the Northern Hemisphere. Landing conditions may not be remarkably good along a lot of the arc at some Remote Field "X".
Landing a T7 without navaid in nice weather is hard enough (see Asiana 214...). Doing it in Winter weather? You might be able to use AP and FMC to program it to a remote locale. Landing is another thing entirely. Ditto for terrain flying.
Has anybody looked at the WX along the Northern Arc?
Also, some terrorist org would have to get an enormous amount of Jet A to the A/C to get it airborne again for some non-trivial flight. At a remote field. Out in the desert or mountains. Uh, Right.