Two women go on trial Monday accused of murdering the half-brother of North Korea's leader, in an audacious assassination in Malaysia that stunned the world and sparked a diplomatic crisis.Indonesian Siti Aisyah and Vietnamese Doan Thi Huong arrived at the heavily guarded court outside the capital Kuala Lumpur for the proceedings, handcuffed and wearing bulletproof vests.The defendants were arrested just days after the killing of Kim Jong-Nam on February 13 as he waited to board a plane