A panel of journalists joins Diane for analysis of the week's top national news stories.
Friday News Roundup Video
The Supreme Court has taken up briefs challenging the legality of the Defense of Marriage Act and California's Proposition 8. Lisa Lerer, White House correspondent for Bloomberg News, said the high court's decision is a big step for the Obama administration, which urged the justices to strike down bans on gay marriage. "The speed in which this has taken place has just really been remarkable," she said.
HBO's new TV special is part biography, part music-appreciation lesson and part performance piece. Critic David Bianculli says it's a superbly compiled work, overseen by two of the people most intimately familiar with the composer himself.
That difference translates to about $550 a year, according to a new meta-analysis of studies evaluating the retail costs of food, grouped by healthfulness. It's chump change for middle-class eaters, but a big gap for low-income families. Researchers say that's a problem that can be solved.
In 2008, Congress passed a law requiring most rail networks to install "positive train control" collision technology by 2015. Engineering professor Christopher Barkan discusses train safety systems, how "positive train control" might prevent accidents, and whether railroads will be able to meet the deadline.
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