Israeli police said Tuesday they have launched an investigation into a death threat made against the country’s prime minister. The police issued a statement saying that a letter containing a death threat and a live bullet was sent toNaftali Bennett’s family. The police said the special crimes department and the Shin Bet internal security agency opened an investigation. Additional details about the case were under a gag order. Bennett’s office said in a statement that the prime minister’s family has been given an increased security detail because of the letter. Bennett formed a government last …