 Pruitt also has a vastly larger around-the-clock security detail than his predecessors.In August 2017, the inspector general of the EPA launched a probe into Pruitt's travel to and from Oklahoma at taxpayer expense.In September 2017, it was revealed that Pruitt had used at least $58,000 worth of noncommercial charter flights and military flights during his tenure, and when traveling on commercial airlines had opted for business or first class when those seats were available.