A retired Army officer who worked as a civilian Air Force employee has pleaded guilty to conspiring to share classified information about Russia's war with Ukraine.

FILE - In this Sept. 13, 2019, file photo the logo for Union Pacific appears above a trading post on the floor of the New York Stock Exchange. A federal judge has blocked one of Union Pacific's main unions from going on strike over its concerns about the railroad's efforts to protect employees from the coronavirus. – A federal judge has blocked one of Union Pacific's main unions from going on strike over its concerns about the railroad's efforts to protect employees from the coronavirus. They have have said the union has similar concerns about virus precautions at the other major railroads, but they decided to press the issue first with Union Pacific. Union Pacific is one of the nation’s largest railroads, and it operates 32,400 miles (52,000 kilometers) of track in 23 Western states.