The Bureau of Alcohol, Tobacco, Firearms and Explosives, BATFE, ran a great little project they titled "Fast and Furious" in which they gave 1,000's of guns to Mexican drug cartels. These exact guns eventually lead to the death of U.S. Border Agents. While this was happening, Janet Napalitano stated that the reason Mexican cartels had fully automatic guns and grenades was because you (the U.S. Citizen) were sending them to Mexico. This is an absolute lie according to our own U.S. cables (90% of all weapons actually come from Central America). Ignoring the fact that fully automatic weapons and GRENADES are illegal in the U.S., POTUS has pushed to pass more aggressive laws restricting your right to own legal firearms (such as rifles with magazines that hold more than one bullet).
POTUS and Supreme U.S. Lawyer, Attorney General Eric Holder, have outright denied any knowledge of the project and claimed that the Administration was unaware of the project. They could maintain that position as long as no one asked too many questions... Well people are now asking questions and it turns out the truth may be a little fuzzier than first reported. At least some people in the Administration new exactly what was going on. Some of those people were pretty darn high up the command.