A morning roundup of news, opinion, and links from Washington City Paper and around the District. Send tips and ideas to citydesk@washingtoncitypaper.com.

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A federal judge ruled this weekend that D.C.’s ban on carrying handguns in public is unconstitutional, prompting the Metropolitan Police Department to announce Sunday that it would no longer be enforcing the ban. On Monday, the District government filed a motion requesting that a federal court delay overturning this gun law in the District until the city’s appeal is heard. The judge has not yet ruled on this motion.

LEADING THE MORNING NEWS:

• Mayor Vince Gray plans to sign a bill today that would ban the use of Styrofoam in the city. [News4]
• D.C. has officially dropped its proposal for a 24-hour waiting period for anyone who wants to get a tattoo or piercing in the District. [WAMU]
• The Silver Line is off to a strong start. [City Desk]
• But there are still some kinks to be worked out with the Blue Line. [Post]

RECENT CITY PAPER STORIES TO HELP YOU MAKE SENSE OF YOUR DAY:

Ace of Basements: Back Alley Theater is one of D.C.’s oldest underground spaces. Is it DIY’s future, too? In our latest cover story, the tale of how a once-dormant venue got a second life—-and how it fits into the current state of D.C.’s DIY spaces.

Happy Official: While most D.C.’s officials are upset by the court ruling that overturned a key gun law, Rep. Thomas Massie of Kentucky—-the Republican who introduced an amendment to an appropriations bill to gut D.C.’s gun laws—-is thrilled with the ruling.

Crafty Town: A new Yelp tool reveals that D.C. is a craft beer town, not a craft cocktail town.

LOOSE LIPS, by Will Sommer. (tips? wsommer@washingtoncitypaper.com)

• District asks for a stay on court decision that would allow carrying a gun in public. [Times, Post, WAMU]
• Former Harry Thomas Jr. staffer says he’s paying for the sins of his councilmember. [LL]
• What the firearms decision means for would-be gunslingers. [Post]
• Pro-gun congressman is thrilled by ruling. [City Desk]
• Gun ruling dropped over the weekend thanks to computer error. [Times]
• Would-be tattoo recipients will definitely not have to wait 24 hours to get inked up. [WAMU]
• Why are big-time developers blowing off St. Elizabeths? [Housing Complex]
• Office of Planning reacts to Height Act changes. [WBJ]

HOUSING COMPLEX is on vacation. (tips?awiener@washingtoncitypaper.com)

• Where to dine along the waterfront [Eater]
• Wonderland Ballroom celebrates its 10th anniversary this Sunday. [PoPville]
• Bub and Pop’s will launch a weekly supper club. [Washingtonian]
• Zero Degrees Zero Minutes pop-up attracts die-hard foodies. [Post]
• Seven new ice cream shops in D.C. [Zagat]
• Can Lyman’s Tavern resurrect pinball culture in D.C.? [DCist]