1.   The issue could derail some political careers.

2.   In contrast, Seoul views human rights as a taboo topic in talks with Pyongyang because it fears the sensitive issue might derail the peace process.

3.   Walsh dropped his amendment after House leaders warned lawmakers the issue could derail the entire bill.

4.   In Washington, two top China experts voiced optimism Wednesday about the handover but warned that the issue could derail still-fragile US-China relations.