Throughout the 20th century, medical research and public health science was primarily done by corporations - the United States, with 5 percent of the population, generated more than 50 percent of the money and a whole lot more of the science.

No more. Medical research has declined in the United States. It's a win for multiculturalism and a win for globalization but a loss for the U.S.  Yet we have no one else to blame. We are not being out-competed by China when it comes to science, we are losing medical research because we have been taught to hate drug companies and that new drugs should be cheap. That has had substantial impact on our policy.

Literature scholars love to debate Shakespeare. Like 'the greatest baseball player of all time' everyone can have an opinion and they are all just as valid, if even a modicum of thought went into it.(1) He was real, he was not real, he was a fraud, he was the greatest writer of all time, he was a woman, you name it and someone in the humanities has argued for it. 

He was Catholic? Catholics say so, at least after the fact, but that evidence is circumstantial, like everything else except his writing.

One of the biggest struggles in toxicology is creating the correct parameters so you are modeling the real world as closely as possible. It's an enormous task to model the environment with its millions of factors, so controlled studies are done using animals.

Scientists design experiments that give an animal a lot of something at once and that can tell them 'this is the threshold where more analysis is a waste of time' and perhaps also find an effect that may be worth studying in more detail. It's a time-honored technique but it's also a technique that can be exploited.

Picture this scenario: A politician is appointed to run NASA who thinks its budget is too high and then half its money and a third of its workforce is on its way to evaporating. Public support for a mission to Mars is nonexistent.

It must be in late 2015, after anti-science Republican Senator Ted Cruz of Texas has control of NASA, if you read science media (and then whatever Huffington Post and Slate are).