The Mid-Atlantic Jazz Festival comes to the Rockville Hilton this weekend. (Nati Harnik/AP)

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A complete guide to this weekend’s Mid-Atlantic Jazz Festival, “the hippest happening ever to hit the Rockville Hilton.” (Capitol Bop)

An analysis of what exactlycauses all those door problems on Metro’s trains. (Unsuck DC Metro)

Scientists have noticed a drop in the number of stink bugs around the D.C. area, but aren’t sure if the good luck will last. (Washington Post)

Assessing what exactly to make of the current narrative that Nats mega-prospect Bryce Harper has some maturing to do. (The Nats Blog)