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In The Daily Circuit's letters segment this week, a professor mentioned that the Minnesota River Valley is home to 3.6-billion-year-old rocks, some of the oldest rocks on earth. We follow up on why that would be and what they signify about Minnesota's past and future.
"The size of the guest-worker program is designed to adjust automatically in response to changing U.S. labor needs, growing in good years when the economy needs more foreign workers and shrinking when more Americans are out of work."
After we taped the Friday Roundtable, I asked the panelists what we should pick up at the farmer’s market this weekend. Stephanie Meyer recommends morels. Amy Thielen says to buy dandelion greens if you can find them. Dara Moskowitz Grumdahl’s a fan of rhubarb: Here’s what you can do with rhubarb. I like to cook…