Phd, Graduate School, Transfer I was pursuing Ph.D. at a certain institution, let's call it X. After I started working, my experiments would fail repeatedly. My supervisor started calling me incompetent in the first two months of starting my Ph.D. Only later did I know that my experiments were failing due to some uncontrollable factor that I was not initially aware of. Later, I found research articles to support my argument and told about the same to my supervisor. Now, he was pressurizing me to do something unethical and I refused, quit the program after one year. Now, I am planning to pursue Ph.D. somewhere else, probably in the USA. Should I tell the admission committee and prospective supervisor what I went through and why did I left first Ph.D. programme?
I would not put that full story on the initial admission, perhaps you could put that time as "research" or somesuch...

If questions in an interview bring it into the open, then you should have an answer ready that is  truthful and relevant. How and what you say is for you to know...