Saudi Arabia was defeated for a seat in the U.N.’s premier human rights body Wednesday after a campaign by rights groups urging the world body’s members to reject its bid. The 193-member General Assembly elected 18 new members to serve on the 47-nation Human Rights Council, which allocates seats to regional groups to ensure geographical representation. The Geneva-based council reviews the human rights records of all countries periodically, appoints independent investigators to examine and report on issues like torture and situations in countries like North Korea, Iran and Myanmar, and sends fa…