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Some recent studies in synthetic biology, they say, raise new questions about the ethical limits of creating entities that might feel pain or resemble human embryos — or mimic humans in other ways.

News of Secretary of State Rex Tillerson's trip to Russia emerged on the same day FBI Director James Comey said his agency is investigating possible coordination between Moscow and the Trump campaign.

Women often worry that exercise is dangerous during pregnancy, but the data shows it's almost always good for both mother and the developing fetus. As with so many things, moderation is key.

Most of the people on Medicaid are elderly, disabled or children, so a GOP proposal to require able-bodied recipients to work probably won't add up to big cost savings, analysts say.

Audie Cornish talks with health policy researcher Leighton Ku about the GOP proposal that would let states require able-bodied Medicaid recipients to work.

Ethics experts say Ivanka's dual role as a business owner and West Wing adviser raises concerns about nepotism and conflict of interest. Ivanka says she will comply voluntarily with ethics rules.

Neil Gorsuch kept an even keel throughout the day, rarely betraying more than a hint of impatience or pique. He smiled a lot, made jokes about family and matched the mood of each of his interrogators.

A new survey shows widespread misconceptions and unfounded confidence about learning.

Supreme Court nominee Neil Gorsuch is answering a second round of questions from a Senate committee today. Democrats are expressing frustration because they're not learning specifics about his views.

Police believe the attacker who killed three people before being shot to death acted alone and was "inspired by international terrorism."