A Florida professor admitted Tuesday he had been a Cuban spy for nearly 30 years, and his wife -- also a professor -- admitted she knew of his conduct, authorities said. Both Carlos Alvarez and his wife Elsa pleaded guilty to lesser charges in federal court in Miami. The couple entered their pleas as part of a deal to avoid a jury trial on previous charges of being Cuban agents who failed to register with the U.S. government, the Miami Herald reported Tuesday. The more serious offense could have put the couple in prison for a decade, the paper said....
