Happy birthday, DuSable Bridge!

The bascule bridge over the Chicago River at Michigan Avenue turned 100 today. The Chicago Tribune has photos.

Also:

• The Tribune explains how the various Covid-19 tests work, and where Illinois is in getting them to people.
• Seems I'm not the only one who thought a combination between GrubHub and Uber might not fit in with US antitrust laws.
• A new book says the US would lose a direct military confrontation with China, because they're set up to fight a different war than we are.
• Turns out, the 4-3 Wisconsin Supreme Court decision yesterday that sent the state's Covid-19 response into chaos may not have been the Republican Party's best move.
• The FBI has seized US Senator Richard Burr's (R-NC) mobile phone as part of an investigation into his alleged securities trading on the nonpublic information he received about Covid-19 in an intelligence briefing in January.
• The full 4th Circuit US Court of Appeals overturned a 3-judge panel from the same court, holding that the president's businesses cannot derive income from foreign governments under the constitution's emoluments clause.

And the New York Times interviewed science-fiction author John Scalzi, whose The Last Emperox came out two weeks ago.