Maybe this is old news to people here, but walking around DC I could never figure out why all these young kids wore Rockies hats with the interlocking CR logo. It turns out, it stands for Crips Rule (or, for Latinos, Canta Ranas - "Singing Frogs"). Even though it's gang-related, it's merchandise sales and free advertising for the team so that's good? The article solved a small mystery for me, so I thought I'd share it.