D.C. punk’s autumn years return to their salad days

The second of two shows celebrating the upcoming documentary “Salad Days: The HarDCore Punk Revolution,” Saturday night’s triple-bill at the Black Cat could have easily succeeded as nostalgic exercise. There was a tinge of sentimentality in the air, including a wistful appearance by H.R. from the seminal Bad Brains. But sets from Youth Brigade, Government Issue and Scream functioned as a reminder of just how powerful the District’s punk rock scene was in the early 1980s...