The search for the Argentinian submarine was like hunting for the proverbial needle in a hay stack, except that it was a piece of straw. Elaine Maslin reports. At 7.19am, local time, on November 15, 2017, the last message was received from the San Juan submarine. She belonged to the Argentinian navy and was on a routine mission from Ushuaia in the Patagonia region to Mar del Plata in Buenos Aires province when she lost contact with the military…