Here is a look at what caused Russians to react so strongly and how the Kremlin responded:
The independent television station Dozhd, or TV Rain, came under attack after asking viewers in January whether the Soviet Union should have surrendered Leningrad, now St. Petersburg, to save the lives of the 1 million people who died during the nearly 900-day Nazi siege of the city during the war. The station quickly pulled the poll and apologized, but President Vladimir Putin's spokesman said the station had crossed a "red line." Russian cable providers lined up to drop Dozhd from their packages and prosecutors opened an investigation.
The poll struck a nerve with Russians for whom the resistance in Leningrad exemplified the suffering and heroism of the war. But the station's owner and editor have accused the Kremlin of using the poll to shut down Dozhd because of its critical reporting. The station has provided a platform for opposition leaders and reported on allegations of official corruption, including during Olympic preparations.
After major cable and satellite providers dropped Dozhd, its viewership has fallen from 17 million households to 2 million, according to station owner Nataliya Sindeyeva. While never able to compete with the state channels, Dozhd has been popular with urban middle-class Russians disturbed by the corruption and growing authoritarianism under Putin.
AN "UGLY" MONUMENT
U.S. television network CNN caused a firestorm when it included a war monument in Brest, a city in the former Soviet republic of Belarus, in an article on the "world's ugliest monuments" published last month. The piece said the Soviet soldier "emerging from a mountainous block of concrete looks as if he's about to thump the West into submission before hurling North America at the sun." It also noted that others think the soldier "simply looks constipated."
On Feb. 6, CNN edited the story on its website and added a note apologizing for the offense it caused in Belarus and Russia.
The following day, the Russian Foreign Ministry took the unusual step of summoning CNN's Moscow correspondent for an official reprimand. The journalist was told that "mocking the memory of Soviet soldiers who gave their lives for the victory over fascism cannot be justified or forgiven," the ministry said in a statement on its website.
The U.S. network then withdrew the article entirely.
"CNN apologizes for the unintended offense caused by an article from a contributor that was intended to be a humorous look at monumental architecture worldwide," it said in a statement. "We recognize that the Courage Monument carries deep and significant symbolism in honoring the soldiers who gave their lives defending their nation."
A controversial news anchor on Rossiya state television went after CNN during his weekly show, which aired Sunday night following the team skating competition in Sochi that gave Russia its first gold medal of the Winter Games.
As pictures of the monumental Brest sculpture filled the screen, Dmitry Kiselyov told viewers how the Americans had ridiculed the Soviet soldier depicted in the war memorial. He then showed a picture of the Marine Corps War Memorial sculpture shot from behind, so that the U.S. Marines raising the flag during the Battle of Iwo Jima were bent over one another.
"It's easy to mock," Kiselyov said with his trademark smirk. "A fevered subconscious could ascribe just about anything to it. Take a closer look: A very modern theme, is it not?"
Kiselyov has often led the attack on Americans, gays or other groups that top the Kremlin agenda. As international criticism over a Russian law banning gay "propaganda" reached a fever pitch last year, he said homosexuals' hearts should be buried or burned.