Real Men, Rapping for their Country

It's compulsory for South Korean men in their late teens or 20s to serve at least two years in the military, and it's not a lot of fun. The discipline can be intense: earlier this year, a whistle-blower accused a captain of ordering his troops to dip their fingers into a dirty toilet bowl and then stick them in their mouths. In June, a young conscript stationed near the DMZ allegedly threw a live grenade into a tent full of sleeping comrades and sprayed it with his K-1 semiautomatic, killing eight. It's still unclear what caused the incident-his court-martial started last...