Nation

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The trainer for the San Francisco Giants slugger Barry Bonds was among the people indicted earlier this week in a federal steroid sting. Spencer Michels looks at the challenges new sophisticated performance-enhancing drugs are presenting in policing the Olympics and…

Jeffrey Brown visits the Vatican and speaks with John Allen, Rome correspondent for National Catholic Reporter, about the 25th anniversary of the John Paul II papacy, the heath of the pope and the issues facing his successor.

Comcast Corp., the nation's largest cable operator, launched an unsolicited bid to merge with Walt Disney. Jim Lehrer and media experts discuss the implications of a Comcast-Disney union for consumers and whether the federal government should try to intercept a…