Some of D.C.'s cab drivers have threatened to strike if the D.C. Council imposes a taxicab modernization plan.

Drivers chanted "Don't sell us down the river" Monday morning in front of city hall. "If that bill passes how it is, in its current form, there will be a strike," said Negede Abebe, chairman of the Small Business Association of DC Taxicab Drivers. "The city might be shut down. I'm telling you."

The plan includes forcing older cabs off the road and installing GPS and credit card machines.

Among the drivers' concerns, Abebe said, are that GPS tracking violates driver and passenger privacy, some penalties for minor violations are too harsh and new wheelchair accessibility requirements are "unrealistic."