Known as Stand Your Ground, the 2005 Florida law eliminated the requirement that individuals retreat in the face of an attack and allowed them to respond with deadly force if necessary.

WSJ: George Zimmerman's Arraignment Date Is Set

The suspect is wanted in Spain to face allegations of membership of a terrorist organisation (Eta), an attack in conjunction with attempted murder, possession of guns and possession of explosives.

BBC: Raul Fuentes Villota

Macedonian Defence Minister Vlado Buckovski warned the rebel National Liberation Army to withdraw from ground it has taken during the truce or face an all-out attack.

CNN: Macedonia issues rebel ultimatum

In close to 75% of cases, hacktivist targets were warned ahead of time that they would face an attack, a tactic that rarely if ever is used by financially-motivated hackers.

FORBES: Verizon Study Confirms 2011 Was The Year Of Anonymous, With 100 Million Users' Data Breached By Hacktivists

The United States could, therefore, face in the future chemically armed adversaries without an in-kind retaliatory capability to deter such an attack.

CENTERFORSECURITYPOLICY: Center for Security Policy | EXCERPTS OF TESTIMONY BY FRANK J. GAFFNEY, JR. before the SENATE ARMED SERVICES COMMITTEE

His main purpose was to make America feel good about itself, and to make it see itself as the sort of nation that wouldn't lapse into fear in the face of such an attack.

BBC: America's mourner in chief