BANGKOK (AP) — It’s not a question most governments involved in the hunt for the Malaysia Airlines Flight 370 care to answer: How much has the far-flung, month-long search cost?

The U.S. bill alone has run into the millions of dollars, and some countries such as China have devoted more ships and planes to the effort than the Americans have. Australia is spending more than half a million dollars a day on just one of the ships it has in the Indian Ocean.