Fewer Russian spies in U.S. but getting harder to track

WASHINGTON (Reuters) - The U.S. decision to expel 60 alleged spies is unlikely to cripple Russian spying in the United States because others have wormed and hacked their way into American companies, schools, and even the government, current and former U.S. officials said.

from Reuters: Top News http://uk.reuters.com/article/uk-usa-russia-spies/fewer-russian-spies-in-u-s-but-getting-harder-to-track-idUKKBN1H40S8?feedType=RSS&feedName=topNews