Wolf Blitzer delivers the most important breaking news and political, international, and national security stories of the day. Tune to The Situation Room weekdays 5-7pm ET on CNN.
CNN's Alina Machado reports on the ambush killing of a police officer in Kentucky and his chief's vow for revenge.
The daughter and brother-in-law of a woman accused of drug smuggling in Mexico tell Wolf Blitzer that she is innocent.
RELATED STORY: Arizona mom's Mexico drug arrest 'about money,' husband says
A Royal Caribbean cruise ship bound for the Bahamas catches fire. CNN's Erin McPike reports.
RELATED STORY: Royal Caribbean cruise cut short after on-board fire
Watch pizza delivery guy eat toppings off pie he's delivering. CNN's Jeanne Moos says YUCK!
Brian Todd reports on a dangerously close call between a passenger plane and a helicopter near Washington, D.C.
Brian Todd reports on a war vet who saved three, and also tried to save mom and baby who died at 7-Eleven, in tornado.
RELATED STORY: Military joins search for Oklahoma tornado victims
The Department of Justice investigates a Fox News reporter over leaks about the 2009 North Korean Nuclear program.