Hello, I'm a first year graduate student from France, and I need to complete a 3/4-months research internship from April to June/July 2012. My interests are in particle physics and theoretical physics, but I guess it is quite impossible to do something interesting in theory during such a short time, so I would like to do this internship in experimental high energy physics. What is the way of finding a research internship in the USA? Should I directly contact a professor whith whom I'd like to work? Are there any programs I could apply to (in or outside the United States)? Thanks for your help.