Toronto Mayor Rob Ford says he doesn't smoke crack cocaine and isn't an addict, in response to a video that surfaced recently purporting to show him using the illegal drug.

Last week Ford called the cellphone video obtained by The Toronto Star "ridiculous" and blamed the newspaper for "going after me."

Friday's comments from Ford were more emphatic.

It's difficult for an American president to govern through nuance, especially when it's necessary to persuade a majority of the people that certain actions are essential for national security. And effective persuasion usually requires clarity.

That's how you arrive at President George W. Bush's stark formulation "You're either with us, or you're with the terrorists" after Sept. 11, and much of what sprang from it.

In the days since a tornado ripped through Moore, Okla., talk of constructing safe rooms in public schools has become commonplace.

In southwest Missouri, officials have built a few of them already, and they are seeking funding to build more.

'A Sense Of Peace'

Karina O'Connell is preparing dinner tonight under the pavilion at Phelps Grove Park in Springfield, Mo., where she's eating with her 9-year-old twin sons, Samuel and John Patrick.

On today's Planet Money, we meet a single mother who makes $16,000 a year — and who managed to fund a vacation at a Caribbean resort with an interest-free loan from one of the world's largest banks.

Edith Calzado gets credit cards with teaser zero-percent interest rates — then transfers her balance before the rate ticks up. She signs up for store cards to get discounts — then pays off her bill on time. She gets food stamps and lives in subsidized housing. Her son is doing well in school.

As the domestic use of drones become more prevalent, Colorado Democratic Senator Mark Udall is introducing legislation to ensure that the privacy rights of Americans are protected.

Billionaire Paul Tudor Jones is back-peddling from remarks he made at a symposium last month that motherhood causes women to lose the necessary focus to be successful traders.

"As soon as that baby's lips touched that girl's bosom, forget it," Jones told an audience at the University of Virginia on April 26.

Los Angeles is the world leader in the most American of clothing items: bluejeans. High-end, hand-stitched, designer bluejeans that will you run well over $100 a pair.

But as the U.S. apparel industry continues to shrink, LA's bluejeans business faces a threat: a nearly 40 percent tariff, imposed by the European Union, that could cripple the city's jean business.

When people talk about Ilse Metchek they use phrases like "she's a piece of work," "a force of nature," "she's something else." If you want to talk fashion, she's your lady.

Melissa Block talks to Jeff Semple of the CBC about the video that appears to show Toronto Mayor Rob Ford smoking crack cocaine.