The drought has dried up water supplies in some parts of the country — and water wars are heating up, between farmers and cities. In New Mexico, farmers have kicked off what could be a long-running fight by making a “priority call” on water resources.

Biogen Idec, a Massachusetts-based biotech company, is hoping its new multiple sclerosis drug Tecfidera will eventually bring in the hundreds of millions of dollars it cost to develop — at least before a generic comes along and copies it. CEO George Scangos joined Marketplace Morning Report host Jeremy Hobson to discuss his company’s development process and pricing strategy.