Coalition experts who are examining an Iraqi mobile laboratory discovered near a Kurdish checkpoint last month can find no other reason for its existence than to produce biological weapons, a top defense intelligence official said today. Stephen Cambone, the under secretary of defense for intelligence, told reporters the mobile lab was discovered April 19 near the town of Tallkayf. "The unit does not appear to perform any other function than to produce biological agents," Cambone said. These agents were most...