Oct. 24, 2010
A Post investigation breaks years of secrecy on where region’s crime guns are sold and how they move through society.
Why we know less about crime gun sales than we did 10 years ago.
Oct. 25, 2010
D & R Arms had few gun traces for its first 10 years of business. But starting in 2004, traces surged.
A handful of state dealers sell 60 percent of guns tied to crimes.
Oct. 26, 2010
ATF’s resources, reach are limited as the gun lobby wields its influence.
Nov. 21, 2010
Surprising patterns found in an unprecedented investigation of more than 500 police officer deaths.
Nov. 22, 2010
The Post tracked two guns from entry into the U.S. through to recovery at a murder scene. Both changed hands multiple times before being used to kill a police officer.
Dec. 13, 2010
The Post has uncovered the names of the top 12 U.S. dealers of guns traced to Mexico in the past two years.
Dec. 14, 2010
A new name on a license can mean business continues as usual, even after the ATF revokes or denies a license.
Dec. 15, 2010
The NRA-led gun lobby has consistently outmaneuvered and hemmed in the ATF, using political muscle to erect barriers to tougher gun laws.
A federal grand jury is investigating Houston-area seller Carter's Country for illegal sales of firearms that ended up in the hands of Mexican drug cartels.
Certain gun dealers along the Mexican border would have to report bulk sales of so-called assault weapons.
Administration officials held up a proposal to require dealers to report sales of weapons favored by Mexican drug cartels.
Data from Virginia show a drop in criminal firepower during the period that the assault weapons ban was in place.
The firearms have disappeared from inventories of licensed gun dealers.
Have gun stores in or around your community had their licenses revoked or denied? Search for dealers near you to find out.
Explore a confidential gun trace report to learn about the challenges that face criminal investigators.
How much did the NRA spend in your district in the 2010 midterm elections? See how NRA-backed candidates fared in your community.
Have police officers been killed in your community? Learn more with our interactive map.
Is your state a gun importer or exporter? Where do its guns go to, and where do they come from?
At one Virginia gun store, guns moved quickly from sales counter to crime.
The ATF's odyssey of trying to revoke the license of one Maryland dealer.
Tina Wilson-Cohen is an NRA-certified firearms instructor. The NRA says training is still a major part of its mission.
In 2007, there were seven slayings in National City, Calif., involving guns. In the past three years there have been only three.
Business was booming in January at the Shooting, Hunting and Outdoors Trade Show in Las Vegas.
Authorities have struggled to keep U.S. firearms out of the hands of drug cartels as violence increases south of the border.
Photos of some of the 511 police officers killed by guns since early 2000, and their families.
Sellers say they work to keep guns out of the wrong hands -- doing background checks and watching out for attempted "straw purchases" -- but that there's only so much they can do.
An ATF agent explains how Texas guns fuel Mexico's drug war, and a killer reenacts shooting to death a Houston police officer.
Darryl Jeter killed Indiana State Trooper Scott Patrick with a handgun in 2003.
Staff at the ATF's National Tracing Center fielded 300,000 requests last year.
Shop owner Robert Marcus said he turns away a suspicious buyer almost every day.