http://www.npr.org/templates/story/story.php?storyId=105017330

Why The Obama administration has asked Saudi Arabia and Yemen to send the Yemenis to detention centers in Saudi Arabia?

isolated: to set or place apart; detach or separate so as to be alone.

detainees: a person held in custody, esp. for a political offense or for questioning.

sought: to go in search or quest of: to seek the truth.