Austrian Chancellor Karl Nehammer defended the decision to cancel Taylor Swift’s three concerts in Vienna after police said they foiled a plot to attack the shows. The last-minute decision by event organizer Barracuda Music was “very responsible and understandable,” Nehammer said at a press conference on Thursday. He also praised investigators for disrupting the alleged bomb plot by two suspected extremists, saying they had prevented “immeasurable damage” from taking place. But he acknowledged the disappointment of the tens of thousands fans who had been set to see the US pop icon in the Austr…