<p>I have never had a problem, but honestly, in any job you enter, (and yes, especially the sciences) you are going to have to deal with people who have thick accents. </p>
<p>To jump off of what TomisMom was saying… This is the world today. Kids complain about how hard it is to understand their TAs, when in reality, they need to get used to it! I have had foreign teachers, foreign TAs, foreign researchers, and everything else in between. People need to learn how to listen to different accents, because there is no escaping it. So I think having foreign TAs is actually useful- it gets you used to hearing people in different accents and I think it prepares you for what the real world is like.</p>
<p>Though I understand it can be frustrating, especially when your grade is in question, students need to get over it!</p>