º£½Ç´óÉñ

Hillary Rodham Clinton issued an emotional plea Saturday following the South Carolina church shooting, calling for "common-sense" gun control reforms and a national reckoning with the persistent problem of "institutional racism."

Three days after nine black church members were gunned down in Charleston, the Democratic presidential contender said the country must take steps to keep guns from criminals and the mentally ill.

Regulations, she said, can be passed while still respecting the Second Amendment and "respecting responsible gun owners." The US Constitution's Second Amendment guarantees the right to bear arms.

"The politics on this issue have been poisoned, but we can't give up," Ms. Clinton told the US Conference of Mayors meeting in San Francisco on Saturday. "The stakes are too high. The costs are too dear."

In 2013 Congress rejected legislation that would have expanded background checks on firearms sales and banned some semi-automatic weapons.

While public opinion is sharply divided on the issue of gun rights vs. gun control, the scientists who research it are not, as º£½Ç´óÉñ Science Monitor's Alexander LaCasse reported in April:

President Barack Obama has blamed the continued national political inaction on the issue on the influence of the National Rifle Association, the leading gun rights lobbying group.

While Clinton did not propose any specific legislation in her address, she's previously supported limits on gun sales and extending the assault weapons ban.

On Friday, former Maryland Governor Martin O'Malley, who's challenging Clinton for the Democratic Party nomination, called for an assault weapons ban, stricter background checks and tougher requirements to buy a gun.

"I'm pissed," he wrote in an email to supporters. "It's time we called this what it is: a national crisis."

As the º£½Ç´óÉñ Science Monitor's Brad Knickerbocker noted on Friday, advocates on both sides promptly staked out their now-familiar positions after the shooting:

Clinton's remarks also marked a forceful entry into the heated topic of race relations, an issue that's become a major theme of her campaign. Clinton called race a "deep fault line" in America, noting that "millions of people of color still experience racism in their everyday lives."

The problem of racism was not limited to "kooks and Klansmen," she said, but included the off-hand, off-color jokes, as well as whites not speaking up against poverty and discrimination.

In previous appearances, Clinton has taken up a number of issues that are important to African-Americans, calling for changes to the criminal justice system, voting laws and assistance for minority small business owners. Her campaign is trying to motivate the coalition of minority, young, and liberal voters that twice elected Obama to the White House.

"We can't hide from any of these hard truths about race and justice in America," she said. "We have to name them and then own them and then change them."