Greenies, still available

The BBC has an article about (surprise!) armor-piercing bullets:

Bullets that are able to pierce police officers' protective vests will remain legal in the US, after a proposed ban met with a fierce opposition from gun rights activists.
The Obama administration sought to ban certain types of ammunition used in the popular AR-15-style rifles.
Most armor-piercing bullets are illegal under the Federal Law Enforcement Officers Protection Act. But rifle bullets have long been exempt for "sporting purposes".
The Bureau of Alcohol, Tobacco, Firearms, and Explosives (BATFE) argued that high-powered rifles capable of firing such rounds didn't exist when the law was enacted in 1986, and therefore some rifle bullets also should banned as well.
The rule change would have affected only M855 green tip (photo) or SS109 rounds with certain types of metal core projectiles.
More than fifty senators wrote to the BATFE protesting against the proposed ban. "If law-abiding gun owners cannot obtain rifle ammunition, or face substantial difficulty in finding ammunition available at reasonable prices because government entities are banning such ammunition, then the Second Amendment is at risk," the senators said in the letter.
House Judiciary Committee Chairman Bob Goodlatte, a Virginia Republican, said he was "pleased that the Obama administration has abandoned its attack on the Second Amendment".

Rico says yeah, he was surprised, too, but he's not sure the Second Amendment covers armor-piercing bullets, since they hadn't been invented in 1776...