LDR, Different Countries??? Am I nuts?

I'm a second year student, and I have a friend at my university who is a fourth year student from Ukraine. In around January one of her friends came to visit the USA for 2 months through some kind of program at her university. From my understanding, it's virtually impossible for a Ukrainian girl to get a tourist visa here... but apparently this was something different, I honestly don't really understand it. Anyways, this girl stayed in the USA with her friend for 2 months. She is studying... LDR, Different Countries??? Am I nuts?
Source: Student Doctor Network - Category: Universities & Medical Training Authors: Source Type: forums