S. KOREA: South Korea restraint after ship sinking adds to clamor for government action

Amid speculation that North Korea played a role, Seoul has warned against premature conclusions. Others say even if the North was involved, the South isn't ready to risk war by challenging the North.

No one knows what sank a South Korean naval patrol boat in the middle of the night last month, but that hasn't prevented a growing public clamor demanding that President Lee Myung-bak challenge the North Korean regime over the disaster.