Defense Secretary Donald Rumsfeld started his second tour at the Pentagon Monday by participating in a secure telephone conversation with Secretary of State Colin Powell and National Security Adviser Condoleeza Rice, followed by a meeting today with the Joint Chiefs of Staff, at which the main topic of conversation was the services' transformation plans, Pentagon spokesman Rear Adm. Craig Quigley said. Rumsfeld met for about an hour with the chiefs in the JCS "tank" and discussed plans for transforming the...