The British government is about to test a new system for tracking vehicles and charging drivers when they use toll roads.

NPR: The Marketplace Report: U.K.'s Car Tracking System

Exchanges and execution venues in coordination with trading firms and clearing members have (or at least should have) an ethical obligation to create test environments and standards for system run-off tests, where all manner of market and technological scenarios bombard each system to verify its robustness.

FORBES: Memo to New SEC Chief: Ask the FAA How to Stop the Next Flash Crash

Detroit would pose a stiff test for Michigan's emergency-manager system, a controversial tool for municipal overhaul that hasn't had many successes yet.

WSJ: Governor to Appoint Financial Overseer for Detroit