Debating the bill permitting lawsuits against governments

In a rare show of unity, 97 senators voted to override President Obama’s veto of a bill permitting families of 9/11 victims to sue Saudi Arabia over its alleged support of the hijackers. The president has warned that it could strain relations or spur retaliation. Judy Woodruff gets two perspectives from Jack Quinn, a lawyer representing 9/11 families, and former Attorney General Michael Mukasey.