The No. 2 officer at the military command in charge of all U.S. nuclear war-fighting forces is suspected in a case involving counterfeit gambling chips at a western Iowa casino and has been suspended from his duties, officials said.Navy Vice Adm. Tim Giardina has not been arrested or charged, Iowa Division of Criminal Investigation special agent David Dales said Saturday. The state investigation is ongoing.Giardina, deputy commander at U.S. Strategic Command, was suspended on Sept. 3 and is under investigation by the Naval Criminal Investigative Service, a Strategic Command spokeswoman said.The highly unusual action against a high-ranking officer at Strategic...