To pass muster with the Federal Aviation Administration and other certification bodies, wings have to sustain at least 150% of the load limit without rupturing.

ECONOMIST: Business travel

Republicans will play into his hands of they seek to load up any debt limit increase with policies unrelated to spending and debt reduction.

WSJ: Review & Outlook: The Tea Party's First Victory

Because of the 20-mile limit, most of the Mexican trucks checked are short-hop rigs that pick up a load on the Mexican side and bring it across for an American rig to take onwards.

ECONOMIST: NAFTA