Lawrence S. Eagleburger was sworn in as secretary of state in a surprise White House ceremony. Eagleburger, 62, had been acting secretary of state since Aug. 23. He was summoned to the Oval Office for what he had been told was a briefing on Somalia. Instead, he found his family and Supreme Court Justice Antonin Scalia waiting with a Bible. The recess appointment will allow Eagleburger to serve with full Cabinet rank for the final six weeks of Bush's presidency.