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.
Former President George W. Bush, known for having an active lifestyle, underwent a heart procedure in Dallas.
RELATED STORY: Bush undergoes heart procedure
Rival politicians take shots at Sen. Mitch McConnell at a Kentucky picnic.
RELATED STORY: Sparks fly in Senate race at Kentucky's Fancy Farm picnic
Yuck or yum? Burger grown in lab gets taste-tested. CNN's Jeanne Moos reports some folks have a cow over it.
RELATED STORY: Have a taste of the world's first stem cell burger
CNN's Tom Foreman joins former General James A. "Spider" Marks to discuss military preparedness against terrorism.
RELATED STORY: US special forces on alert overseas to strike any potential Al Qaeda targets
Brian Todd reports on Ibrahim al-Asiri, al Qaeda's master bomb-maker who could be involved in this current threat.
RELATED STORY: Prison breaks are among reasons for heightened security
Officials say al Qaeda's leader ordered a terrorist act, and that is what led to the closure of U.S. embassies.
RELATED STORY: Source: al Qaeda leader urged affiliate to 'do something'
Yankees star Alex Rodriguez addresses Major League Baseball's decision to suspend him for 211 games.
RELATED STORY: Alex Rodriguez: 'I'm fighting for my life'