How did Google get so big; then, the Theranos deception; and, Mario Batali and the Spotted Pig

Critics of Google claim it stifles competition; a former Theranos employee speaks out about the company's deceptions and their endangerment of unsuspecting patients; restaurant workers' claims of sexual harassment at "The Spotted Pig."

The two unpredictable leaders plan to meet in Singapore to negotiate the future of North Korea's nuclear weapons program. David Martin reports on why the summit carries so much weight.