'Scandal' has become must-tweet TV

Critic's notebook: The ABC drama 'Scandal' has become a social-media phenomenon and a test case for TV networks trying to navigate new media.ABC's "Scandal" revolves around a beautiful, law-breaking Washington power-fixer with killer instincts and a matching wardrobe. She's madly in love with the very flawed president of the United States, who, among other things, recently murdered a Supreme Court justice. And they're the good guys.