First a B-1 Bomber from Ellsworth Air Force Base in South Dakota thundered northwest to southeast over Sunset Memorial Cemetery and the crowded grave site of David Thatcher, the penultimate Doolittle Raider from World War II.
From here they headed northeast, over the White Mountains in the east of the state and then, after side trips to Hopi land and the Grand Canyon, continued through New Mexico and into Kansas.
The Prime Minister spoke out after objections halted installation of a ten-foot bronze of the Tory icon in Parliament Square.
A residents' association has objected on the grounds that the former Tory leader was 'controversial enough to risk vandalism'.
The Royal Parks quango, which owns the land, also suggested the proposal should be rethought because the £300,000 statue has not received the support of Baroness Thatcher's family.
But Mrs May, who is in Hamburg for the G20 summit, told BBC News: 'What I'm very clear about is there should be no suggestion that the threat of vandalism should stop a statue of Margaret Thatcher from being put up.' No 10 today insisted the decision on whether to ahead was for Westminster Council.