Summer may seem far off, but if you want this very special opportunity you need to get your application by January 5th, 2012. Since you'll need to review sites and you'll want to have the opportunity to present yourself in the best possible light, it's not too soon to be begin reviewing the requirements.
Here's a link to the site: http://www.orau.gov/dhsinternships/
This is a 10 week commitment and there is a $500 a week stipend. The program is aimed at rising juniors and seniors, so if you will be completing your sophomore or junior year in the Spring this might be an opportunity for you. You should have a 3.30 GPA.
Please review the site for all the specific information, including reimbursed travel expenses.