By JOSEPH WILSON LIVIGNO, Italy (AP) — On the climb to Livigno, atop the mountain pass before the road glides down to the village hosting snowboarding at the Winter Olympics, there sits a lonely customs checkpoint. Its guardhouse and gate are the only signs of an internal fiscal border within Italy, one that encircles the snow-blanketed valley and the duty-free status it has enjoyed for centuries. Related Articles Overtime and shootout rules at the Olympics change as the tournament unfolds Hockey star Laila Edwards’ family cheers at Olympic debut, thanks to Kelce brothers and a GoFundMe US hockey star Haley Winn’s three older brothers are her biggest fans online and at the rink Sharks...