Freezing temperatures and ice over the past weekend have impacted agricultural industries across the U.S. This morning, we'll learn about its effects on timber, sugar cane, crawfish, cattle, and more. But first, major U.S. insurance companies are down in premarket trading after a small projected rate increase for privatized Medicare Advantage plans. And, from Marketplace’s "Make Me Smart," federal student loan borrowers in default won't experience wage or tax garnishment — yet.