The safe-haven Swiss franc rallied across the board on Friday as the escalation of the Middle East conflict spurred a flight to safety, while the U.S. dollar slipped in choppy trading after data showed an unexpected drop in new jobs created last month. The dollar fell 0.5% against the Swiss franc to 0.7764, while the euro also slid 0.5%, to 0.9019 franc. The franc tends to rally in times of heightened geopolitical tension. U.S. President Donald Trump on Friday demanded Iran's "unconditional surrender," viewed as a dramatic escalation of his rhetoric a week into the war he launched alongside Israel.