On this week's show...

• Thousands march nationwide on May Day for immigrant rights and an end to raids and deportations
• Environmental justice organizers kick off Biojustice 2007 in Boston
• Media Minutes gives this week's report on the intersection of media and democracy
• an interview with Staughton Lynd on Ohio's Supermax prison in Youngstown and the history of the Lucasville uprising
• and more in our local and global headlines