JERUSALEM (AP) -- The Israeli prime minister's 19-year-old son - a military spokesman - posted derisive comments about Arabs and Muslims on his Facebook page, drawing a slap on the wrist from his superiors and focusing new attention on the controversial first family. Earlier this year, Yair Netanyahu posted that Muslims "celebrate hate and death," the Haaretz daily newspaper reported Friday. In the same post, written after Palestinian assailants entered a West Bank settlement and stabbed five members of an Israeli family to death, he wrote that "terror has a religion and it is Islam."