I think that Gary is almost entirely correct. I would add one amendment: IDF should do its best to aim its retaliatory kassams to the places from which the quassams are fired. My bet is that, if they sometimes fail in finding those spots, sane Pals will help them find them.
Man shot dead in northern Israel town of Bi'ina, police say the murder was gang related (Haaretz)
from the article: Gov't to give Gaza arms smuggling top priority in diplomatic meetings