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Commentator Ruth Levy Guyer reflects on the power of wind -- to spark life by spreading seeds, to cause disease by spreading pathogens, and to disturb the psyche. Guyer teaches courses in bioethics and infectious diseases at Haverford College.

Canada is calling for the arrest of a senior Iranian official in connection with the death of a female photojournalist. The woman was arrested while taking photographs of a prison. Hard-line Iranian authorities said she died of a stroke. Iranian reformists have said she was tortured to death.

John McPhee has written at length about fish, geology, oranges, nuclear power, basketball... and the list goes on. At 75, the great reporter feels he has plenty of words, characters and subjects left to explore.

Michele Norris talks with Dr. Madelyn Fernstrom, director of the Weight Management Center at the University of Pittsburgh Medical Center. Dr. Fernstrom will clue us in about which juices are actually good for you, and which ones are no better than sodas.

The House of Representatives passes a measure to address lobbying scandals that have tarnished the reputation of Congress. Opponents criticize the bill as too weak. But the majority of Republicans say it is a first step toward meaningful reform.

Beverage makers and the William Clinton Foundation announce a plan to stop the sale of full-calorie sodas at public schools nationwide by 2010. Under the deal, only water, unsweetened juice and low-fat milk will be sold in lower grades and only diet sodas will be sold in high schools.

Sen. Barack Obama arrives in Kenya for a visit to his father's native country, and ancestral village. The Obama family's home village is preparing to celebrate his much-anticipated arrival. The Illinois Democrat is on a tour of several African countries.

The real estate slump on both coasts has left a glut of condominiums on the market in places like San Diego. That's forcing some sellers into big price cuts. Many developers are responding to the changing market conditions by converting vacant condos into rentals.

Before most Americans had heard of the Taliban, Pakistani journalist Ahmed Rashid wrote a book about them. After the Sept. 11 attacks, it became a best-seller. Rashid's recent reporting for English-language newspapers involves Islamist militants in Afghanistan and Pakistan.

Mexico elects its next president July 2. The race is hotly contested between leftist Andres Manuel Lopez Obrador and conservative Felipe Calderon. Mexico's electoral system has long been known for fraud, financing irregularities, and the outright buying of votes. While Mexico has improved dramatically under an independent electoral watchdog, shadows of its past remain. Michael O'Boyle reports.