<p>ALEXANDRIA, Va. (AP) - A dog trainer was convicted Friday of contracting defective bomb-sniffing dogs to the federal government. Russell Lee Ebersole, 43, of Hagerstown, Md., is the owner of a Virginia business that trains dogs to detect drugs and explosives. After the Sept. 11, 2001, terrorist attacks, he charged various government agencies more than $700,000 for the use of his dogs.</p>