The US Air Force is facing more questions as to why it spent tens of thousands of dollars over the last three years on large cups that can reheat beverages, like coffee or tea, on refueling tankers and cargo aircraft during flight.
원문출처 : https://www.cnn.com/2018/10/29/politics/air-force-coffee-cups-reheating-chuck-grassley/index.html
원문출처 : https://www.cnn.com/2018/10/29/politics/air-force-coffee-cups-reheating-chuck-grassley/index.html