Is human head transplant research unethical?

What are the ethical arguments against research in head transplants being carried out by Dr. Xiaoping Ren in China?

 
There are ethical considerations based on the objections of animal rights activists. I don't discount them, but I'm not well-versed in their terminology.

The ethical considerations as extended to humans are most obvious to me. Even if such a thing as a head transplant were possible, which is extremely unlikely given the complexity of reattaching a severed spinal cord, what are the criteria for body donors?

 
Here is the ethically challenging scenario: You have two people, 

• one with a paralyzed body but a healthy head 
• the other with a healthy body and a healthy head. 

How can a knowledge economy work in practice?

Read Ellie Kesselman's answer to How can a knowledge economy work in practice, with very few non-technical, lower-skilled niches to fill for the workers? on Quora

Is a 1500 microsecond clock cycle low enough latency to do high frequency trading?

Read Ellie Kesselman's answer to On a modern high-end machine, how many clock cycles is 1500 microseconds? on Quora

Describe a little-known and remarkable fact about the CIA

The CIA fostered and promoted American Abstract Expressionist painting around the world for about 30 years, and was remarkably successful in doing so.[1] 

The decision to include culture and art was made when the CIA was founded in 1947.  In 1950, the International Organisations Division (IOD) of the CIA was set up. It subsidized the animated version of George Orwell's Animal Farm, sponsored American jazz artists, many opera recitals and the Boston Symphony Orchestra's international touring program.

Rebutting the idea of America as a cultural desert

During the 1950s, Senator Joe McCarthy's hysterical denunciations of the avant-garde and unorthodox were deeply embarrassing. They discredited the idea that America was a sophisticated, culturally rich democracy.

Why Abstract Expressionism?

Jackson Pollock was one of the artists whose work the CIA helped to promote. Summertime Number 9A via Art Crimes on Flickr

It was recognized that Abstract Expressionism was the kind of art that made Socialist Realism look even more stylized and more rigid and confined than it was... Moscow in those days was very vicious in its denunciation of any kind of non-conformity to its own very rigid patterns.[2]

One could accurately reason that anything the USSR criticized that much and that heavily was worth supporting.

1 https://ww2.kqed.org/arts/2014/02/03/dear-president-obama-in-defense-of-the-art-degree/
2 http://www.independent.co.uk/news/world/modern-art-was-cia-weapon-1578808.html