Morning Roundup: Best (and worst) vehicles for driver deaths, Sherrod ...

In today's roundup: The Insurance Institute for Highway Safety's best and worst vehicles for driver deaths, Sherrod Brown shoots down any speculation about running for president, NBC4 reports on concussions and how the NCAA is dealing with them, Old Spice makes ridiculous scientific claims about its latest scents, and Jack Johnson 's parents allegedly were equal opportunity grifters. The Insurance Institute for Highway Safety is out with a new report detailing a dramatic drop in traffic deaths over the past several years.

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