Words similar to spying

Example sentences for: spying

How can you use “spying” in a sentence? Here are some example sentences to help you improve your vocabulary:

The LAT and USAT fronts run stories about the arrest for spying of a former Army sergeant who served as a codebreaker, allegedly for selling (for $60,000) the identity of Soviet sites to be nuked by the U.S. if the Soviet Union started a nuclear war.
Though it is not on a par with Kosovo and Chinese spying, I nevertheless have been reading about Hugh Hefner, the geezer in pajamas who founded Playboy around the time my father was a young man.
The piece goes on to point out that in the past three years, CIA officers have been caught spying in, and kicked out of, at least four other countries: Germany, France, Italy and India.
The piece claims that China has successfully devised a new espionage strategy that can "consistently defeat our ability to investigate or prosecute spying offenses."
Alexander Feklisov says 1) that Rosenberg passed U.S. military secrets to the Russians but 2) supplied no useful information about the atomic bomb, contrary to the assertions of J. Edgar Hoover, and 3) that Ethel Rosenberg, who was executed along with her husband, did no spying for Feklisov.