Members of Congress may be alarmed by the surge in Mexican drug violence and its potential to spill across the border, but they grow silent when the talk turns to gun control as a solution.
With related kidnappings and killings occurring in the U.S., theto shift dozens of enforcement agents and step up gun and drug smuggling prosecutions in the fight against Mexican drug cartels.
Yet when Attorney General Eric Holder suggested last month reinstituting a U.S. ban on the sale of certain semiautomatic weapons, many lawmakers balked. The 1994 ban expired after 10 years.
"The Second Amendment Task Force opposes the discussed ban and will fight any attempts that infringe on our Second Amendment rights," said Rep. Paul Broun, R-Ga., a chairman of the group. Six Democrats and six Republicans co-signed his statement.
Mexico's drug violence has killed more than 9,000 people since President Felipe Calderon took office in December 2006 as gangs battle each other for territory and fight off a government crackdown.
Underscoring the Obama administration's concern over the violence and the potential for a large-scale spillover into the United States, Secretary of State Hillary Rodham Clinton will travel to Mexico on Wednesday to show support for its crackdown on drug cartels.
Paul Helmke, president of the Brady Campaign to Prevent Gun Violence, said the administration's plan would be inadequate if it does not enact new gun restrictions.
"The problem that is occurring in Mexico is one we are contributing to. It is one our weak gun laws are contributing to," Helmke said.
Mexico has long tried to get the United States to curtail the number of guns - many purchased legally - that wind up south of the border, where gun laws are much stricter. The State Department says firearms obtained in the U.S. account for an estimated 95 percent of Mexico's drug-related killings.
"If President Calderon's policies to roll back organized crime are to be successful, we need to defang the power of the drug syndicates to inflict damage upon our state, local and police forces," Arturo Sarukhan, the Mexican ambassador to the United States, said in January. "The best way we can do that is for a real ratcheting up of the United States' capabilities of shutting down the flow of weapons."
That may prove tough to do.
After opposition from the National Rifle Association, 22 Democrats joined Republicans in a Senate vote this month to negate the District of Columbia's tough gun registration requirements and overturn its ban on rapid-fire semiautomatic weapons. More than 80 House Democrats backed a similar measure last year.
The gun lobby has raised more than $20 million for political candidates since the 1990 election cycle, with about 85 percent going to Republicans. That ranks 68th among about 80 industry groups tracked by the OpenSecrets.org campaign finance watchdog.
When border violence comes up in hearings, lawmakers say they don't see a need for new gun laws.
"I don't think the solution to Mexico's problems is to limit Second Amendment gun rights in this country," said Sen. John Cornyn, R-Texas, chairman of the Senate GOP's election committee. "What we can do is help our Mexican friends enforce their own laws."
For his part, Obama has signaled a willingness to tighten restrictions on guns, calling the flow of drug money and guns "a two-way situation." Yet 65 Democrats said in a letter to Holder that they would oppose any attempt by the administration to revive a ban on military-style weapons.
Congress did provide $45 million this year for Project Gunrunner, a federal program aimed at curbing the flow of guns. Rep. Ciro Rodriguez, a Texas Democrat on the Appropriations Committee, said he will seek another $30 million over two years for the program and $30 million more to fund efforts by Immigration and Customs Enforcement to crack down on gun trafficking.