During the Age of Eisenhower, Ike proposed "Open Skies" allowing both sides of the "Cold War" to overfly each others countries, so neither side would fear a mass military gathering. Nikita rejected the proposal.
Now, of course, our satellite surveillance provides such assurance. However, because of "smart weaponry" a far smaller marshaling is needed to devastate the other side. Hence the need for higher resolution photography from aircraft like the Blackbird, or high altitude lighter than air vehicles.
Obviously the present administration has chosen, thus far, to kept secret how many of these "flight-path hazards" have been removed from our skies.
Now, of course, our satellite surveillance provides such assurance. However, because of "smart weaponry" a far smaller marshaling is needed to devastate the other side. Hence the need for higher resolution photography from aircraft like the Blackbird, or high altitude lighter than air vehicles.
Obviously the present administration has chosen, thus far, to kept secret how many of these "flight-path hazards" have been removed from our skies.