World Dec 06 Watch Iranian Nuclear Program: Will U.S. Concede Anything in Talks? Iran struck a defiant note as talks began anew with the U.S. and five other countries over its nuclear ambitions. Margaret Warner talks with former State Department official Suzanne Maloney of the Brookings Institution about Iran's nuclear program and the…
World Dec 06 Watch Nuclear Talks Resume as Iran Makes ‘Yellowcake’ Announcement International talks on Iran's nuclear program resumed Monday shortly after Tehran claimed it had mastered the uranium-mining process to become "self sufficient" in creating nuclear fuel. Margaret Warner has an update.
World Apr 20 Volcano Stems Kenya’s Flower, Vegetable Market Iceland's volcano has not only thrown a wrench into airline passengers' plans but has put Kenya's European market of fresh produce and cut flowers in limbo, at least temporarily. By Larisa Epatko
Science Oct 08 Watch Tracking Tainted Food a Near Impossibility in U.S. Lee Hochberg reports on the difficulty in tracking the source of tainted foods and the complicated trail from production to sale.
Nov 22 Watch Growers Modify Practices to Prevent E. Coli Outbreaks Spinach has returned to store shelves after September's deadly E. coli outbreak. NewsHour correspondent Spencer Michels reports from California on what caused the problem and what growers are doing to prevent another one. Continue watching