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The third part of the Washington Post series on tax liens reports that the District put nearly 1,900 houses at risk for foreclosure by mistakenly imposing liens on the properties and selling them to investors at auctions. Meanwhile, Mayor Vince Gray and other D.C. leaders say they are shocked and outraged by the tax lien sales, but they all ignored warning letters about the practices 16 months ago.

LEADING THE MORNING NEWS:

• Mayor Vince Gray is signing a labor agreement today for construction of the new $300 million soccer stadium. [News4]
• The District’s Department of Transportation is starting to repave the busy 15th Street NW bike path from K Street north to Swann Street. [WAMU]
• The Pigskins lost their season opener against the Eagles, with Michael Vick upstaging Robert Griffin III big time. [ESPN]

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

Skinny Vinny: In case you were curious, here’s how Councilman Vince Orange got svelte and lost 45 pounds.

Power Struggle: Mayor Vince Gray called for a moratorium on tax lien sales, but he can’t exactly do that without the council passing a new law.

Ups and Downs: Ninety-five percent of Metro’s escalators are working (but rides and revenue are down for the transit system.)

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

• Part three of the Post‘s tax lien investigation finds 20 percent of liens sold accidentally. [Post]
• Mayor Vince Gray and Jack Evans say they’re surprised by the investigation, but a group tried to tell them about the problems last year. [Post]
• A tax lien sale moratorium will need legislation from the D.C. Council. [Housing Complex]
• There’s more than one kind of problematic tax lien sale. [Housing Complex]
• Without all the land secured, Gray is set to sign a labor deal for the D.C. United stadium. [NBC 4]
• David Grosso plans to introduce pot legalization bill next week. [Times]
• Metro ridership falls 4 percent. [WAMU]
• With a double-digit drop on weekends. [GGW]
• Vincent Orange gets fit. [LL]
• Howard falls in the college rankings. [Post]
• More details on Georgetown stabbings [Post]
• 15th Street NW bike lane repaving starts. [WAMU]
• D.C. leads the country in unintended pregnancies. [WAMU]

HOUSING COMPLEX LINKS, by Aaron Wiener (tips? awiener@washingtoncitypaper.com)

• Some of the homes lost through tax lien sales were due to mistakes by the city. [Post]
• D.C. is the second-best metro area for recent college grads seeking jobs. [Atlantic Cities]
• ANC supports Southwest development after landmarking scraps one building. [SWTLQTC]
• And the same ANC votes in favor of this snazzy movie theater. [GarberDC]
• GSA might unload the Webster School. [WBJ]
• More buildings are offering bike amenities. [Streetsblog]
• D.C.’s fanciest zip code: 20007. [UrbanTurf]
• Metro’s revenue is down, but escalators are up. [DCist]
• Weekend ridership is plummeting, probably due to track work. [GGW]
• Today on the market: Columbia Heights condo, with a peculiar sales pitch for the neighborhood

ARTS LINKS, by Ally Schweitzer (tips? aschweitzer@washingtoncitypaper.com)

FOOD LINKS, by Jessica Sidman (tips? hungry@washingtoncitypaper.com)

• Ben’s Chili Bowl signs lease in home of the original Ray’s Hell Burger. [WBJ, Todd Kliman]
• Taylor Charles Steak & Ice hosts water ice-eating contest. [Washingtonian]
• Sneak peek at Eno Wine Bar in Georgetown [Eater]
• Smashburger opens tomorrow near Dupont. [Post]
• Panda Gourmet opens at 2700 New York Ave. NE. [Zagat]
• How to be a regular [ARLnow]