SAN DIEGO (AP) — Lennon Tyler and her German fiancé often took road trips to Mexico when he vacationed in the United States since it was only a day’s drive from her home in Las Vegas, one of the perks of their long-distance relationship. But things went terribly wrong when they drove back from Tijuana last month. U.S. border agents handcuffed Tyler, a U.S. citizen, and chained her to a bench, while her fiancé, Lucas Sielaff, was accused of violating the rules of his 90-day U.S. tourist permit, the couple said. Authorities later handcuffed and shackled Sielaff and sent him...