News: World Officials: Attackers kill 3 South Korean doctors, beheading 1, in northeastern Nigeria attack February 10, 2013 | Modified: February 10, 2013 at 5:30 am Leave a comment POTISKUM, Nigeria (AP) — Officials: Attackers kill 3 South Korean doctors, beheading 1, in northeastern Nigeria attack. Sign Up for the Daily E-dition newsletter! Please enter your email address below to begin receiving the Daily E-dition newsletter. You must enter a valid email address in the field above! Thank you for signing up for the Daily E-dition newsletter! You should receive your first newsletter very soon. We're sorry, there was an error processing your newsletter signup. Please click here to visit our Newsletter Signup Center to register for this newsletter.