
By CNN's Carol Costello and Bob Ruff
The power of a single image can move mountains – and governments.
In 1970, during the Vietnam War, John Filo snapped a Pulitzer Prize winning photograph that may have tipped public opinion against that war.
John Filo’s black and white image showed 14-year-old Mary Ann Vecchio kneeling in grief over a Kent State student gunned down by Ohio National Guardsman who had been sent to the campus to quell an anti-war demonstration.
At the time many Americans already were numbed by repeated images of their soldiers dying in Vietnam, but the sight one of their sons or daughters gunned down at home was too much to take.
During World War II, Joseph Rosenthal also won a Pulitzer Prize for snapping a photograph of Marines raising the American flag after winning the battle of Iwo Jima. The photo helped raise badly needed war bonds and boosted the morale of a war weary nation. They even turned the photo into a statue at the Arlington National Cemetery.
But it doesn’t always work out that way.
Jon Bon Jovi is helping a lot of people go home again. He participated at the National Conference for Service and Volunteering as an ambassador for the Entertainment Industry Foundation – Hollywood's leading charity.
Yesterday he made a special appearance to an audience of more than 4,500 service leaders who were kicking off a multi-year campaign to help make service and volunteerism a national priority.
For more information on these charities:

Here are the big stories on the agenda today.
Is President Obama keeping his campaign promise to double the size of the Peace Corps?
That's just one of the statements we ran through the Truth-o-Meter with Bill Adair, founder and editor of the Pulitzer Prize-winning Politifact.com.
President Obama is taking a lot of heat from Republicans and conservatives for not being more critical of the Iranian government as protesters face violence from security forces in Tehran.
Citing sources in the administration, the New York Times reports Vice President Joe Biden and Secretary of State Hillary Clinton would like him to take a stronger stand.


Commentary: Iran conflict isn't class warfare
Hamid Dabashi is the author of "Iran: A People Interrupted." He is Hagop Kevorkian Professor of Iranian Studies and Comparative Literature at Columbia University in New York. His Web site is www.hamiddabashi.com/
[cnn-photo-caption image= http://i2.cdn.turner.com/cnn/2009/images/06/22/art.hamid.dabashi.jpg caption="Hamid Dabashi says it's wrong to view the conflict in Iran as a battle of the middle class vs. the poor."]
By Hamid Dabashi
Special to CNN
(CNN) - In a short essay that Abbas Amanat, a scholar of 19th-century Iran at Yale University, was asked to write for The New York Times on the current crisis in Iran, he asserted that what we are witnessing is "the rise of a new middle class whose demands stand in contrast to the radicalism of the incumbent President [Mahmoud] Ahmadinejad and the core conservative values of the clerical elite, which no doubt has the backing of a religiously conservative sector of the population."
This learned position of a leading scholar very much sums up the common wisdom that Iranian expatriate academics are offering an excited public mesmerized by the massive demonstrations they witness on their television sets or computer screens and eager to have someone make sense of them.
In part because of these hurried interpretations, the movement that is unfolding in front of our eyes is seen as basically a middle-class uprising against a retrograde theocracy that is banking on backward, conservative and uneducated masses who do not know any better. While the illiterate and "uncouth" masses provide the populist basis of Ahmadinejad's support, the middle class is demanding an open-market civil society.
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Filed under: Commentary • Iran