The morning after the Sandy Hook shootings, Shannon Watts, a mother of five and a former public relations executive, started a Facebook page called “One Million Moms for Gun Control.” It proved wildly popular and members quickly focused on renewing the federal ban on military style assault weapons.

“We all were outraged about the fact that this man could use an AR-15, which seemed like a military grade weapon, and go into an elementary school and wipe out 26 human beings in less than five minutes,” Watts said.

Nearly two years later, Watts works full-time as the head of the group, now named Moms Demand Action for Gun Sense in America, is a significant player in a coalition financed by former New York Mayor Michael Bloomberg. But while polls suggest a majority of Americans still support an assault weapons ban, it is no longer one of Watts’ top priorities.

“We’ve very much changed our strategy to focus on public safety measures that will save the most lives,” she told ProPublica.

It’s not just that the ban proved to be what Watts calls a “nonstarter” politically, gaining fewer votes in the Senate post-Sandy Hook than background check legislation. It was also that as Watts spoke to experts and learned more about gun violence in the United States, she realized that pushing for a ban isn’t the best way to prevent gun deaths.

A 2004 Justice Department-funded evaluation found no clear evidence that the decade-long ban saved any lives. The guns categorized as “assault weapons” had only been used in about 2 percent of gun crimes before the ban. “Should it be renewed,” the report concluded, “the ban’s effects on gun violence are likely to be small at best and perhaps too small for reliable measurement.”

America has a rap sheet.

Over the past 20 years, authorities have made more than a quarter of a billion arrests, the Federal Bureau of Investigation estimates. As a result, the FBI currently has 77.7 million individuals on file in its master criminal database—or nearly one out of every three American adults.

Between 10,000 and 12,000 new names are added each day.

At the same time, an information explosion has made it easy for anyone to pull up arrest records in an instant. Employers, banks, college admissions officers and landlords, among others, routinely check records online. The information doesn't typically describe what happened next.

Many people who have never faced charges, or have had charges dropped, find that a lingering arrest record can ruin their chance to secure employment, loans and housing. Even in cases of a mistaken arrest, the damaging documents aren't automatically removed. In other instances, arrest information is forwarded to the FBI but not necessarily updated there when a case is thrown out locally. Only half of the records with the FBI have fully up-to-date information.

"There is a myth that if you are arrested and cleared that it has no impact," says Paul Butler, professor of law at Georgetown Law. "It's not like the arrest never happened."

When Precious Daniels learned that the Census Bureau was looking for temporary workers, she thought she would make an ideal candidate. The lifelong Detroit resident and veteran health-care worker knew the people in the community. She had studied psychology at a local college.

Days after she applied for the job in 2010, she received a letter indicating a routine background check had turned up a red flag.

Target announces but won’t enforce gun ban

Target spokesman Molly Snyder told the Wire that they are “requesting that people do not carry any firearms in our stores, including concealed carry. We will continue to follow local laws, however, concealed weapons are included in our position.” However, Target has no plans to actually enforce its request. The Wire asked Snyder if Target will ask a gun-toting customer to leave and she said: “Because this is a request and not a prohibition, we do not plan to communicate with our customers at this time