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Why would you attach a moth to a robot so that it could maneuver around a wind tunnel? Not to create some sort of science fiction monster. The goal is to learn more about how to detect dangerous odors. Moths' antennae may provide some clues.

The man who allegedly killed former Navy SEAL Chris Kyle and Chad Littlefield at a Texas firing range was also an Iraq War veteran, and the crime has raised questions about the treatment of post-traumatic stress disorder — including whether a firing range is a safe place for a disturbed veteran.

Usually, the job of heading the Interior Department goes to a Western politician versed in the struggles over natural resources. So the president's nomination of Sally Jewell, a relatively obscure CEO, has left some of the key players unsure of how to react.

The Republican River is crucial to the agricultural economy of several states in the West and Great Plains. But as a drought drags on, Kansas says Nebraska farmers have been taking more than their fair share of the river — and have asked the Supreme Court to weigh in.

The buyer said he bought the Brooklyn Atlantics baseball card as an investment for his 4-year-old son who has health problems. The card was expected to go for $100,000.

The National Weather Service says that some parts of New England could end up with more than two feet of snow, this weekend. But this, they warn, is a difficult forecast.

Prosecutors are calling for lengthy sentences, describing the group's hair shearing of fellow Amish as terrorist acts. The defense is asking for leniency, saying no serious physical harm was done. But legal experts predict it won't be a soft sentencing.

Michigan Gov. Rick Snyder said he would seek to expand the state's Medicaid program under the terms of the Affordable Care Act a day after Ohio Gov. John Kasich effectively said the same thing when he unveiled his proposed budget.

Minnesota has a Democratic governor, two Democratic senators, and Democrats control both houses of its Legislature. President Obama went there to rally support for his proposals to reduce gun violence. But even in Minnesota, there's considerable resistance to placing further restrictions on guns.

A 48-acre area in California that housed more than 200 species of birds was stripped bare by the Army Corps of Engineers, which manages the land. The Corps says the clearing was necessary to improve flood control and discourage homeless camps and drug dealing, but some are questioning whether the agency violated rules that protect wetlands and waterfowl.