3/4 of States Are Now Stand Your Ground; only 12 Are Duty to Retreat
I wrote about this several months ago, but several states have gone stand-your-ground since then—Ohio, Arkansas, and now North Dakota—so I thought I'd repeat it. [UPDATE: For more about a twist on the duty to retreat, the duty to comply with negative demands, see this follow-up post.]
[A.] The "duty to retreat" is something of a misnomer (though a very common one); it's not actually a legally binding duty (the way a parent has a duty to support a minor child, or a driver has a duty to exercise reasonable care while driving). Rather, it's a provision that, under certain circumstances, failing to retreat from a confrontation will effectively strip you of your right to use deadly force for self-defense.