The headline is pretty self-explanatory: ‘Morning-after’ Pill Doesn’t Increase Unsafe Sex. (Well, at least it didn’t in Britain, where the study was done.) A pdf of the actual article from the British Medical Journal is here.
Note that Washington State was the first state in the US to allow pharmacists to dispense emergency contraceptives without a doctor’s prescription, serving as a model for California, Alaska, New Mexico and Hawaii, as well as for British Columbia. See more here.