TAIPEI, Taiwan (AP) — Taiwan’s government expressed concern on Friday hours after a call between China and the United States’ top diplomats in which Beijing stressed that self-ruled Taiwan was the biggest risk in relations. “Taiwan’s Ministry of Foreign Affairs is concerned about the press release issued by China … which again unilaterally made threatening remarks on the Taiwan issue,” the Foreign Ministry said in a statement. In a call with U.S. Secretary of State Marco Rubio Thursday, Chinese