Nearly 90 years after Amelia Earhart vanished over the Pacific, a presidential order to declassify every US record on her final, ill-fated flight has sparked a fresh surge of interest in one of aviation’s most enduring enigmas.US President Donald Trump announced on Friday that he had ordered the declassification of “all records” related to Earhart – but among those who have devoted their lives to the mystery, there was a sense of weary deja vu.The information the US government has on Earhart...