I have a valid F1 visa (student) stamped in my Indian passport. I am traveling from India to USA with a connection in Doha. Doha doesn't need a transit visa, but Chicago does - as per the travel website. I have to catch another connection from Chicago to another state and this is where the transit visa is marked as required.
Do I really need this, if I have a valid visa marked in my passport?
Edit: As we all suspected, a transit-visa is not required. They agency guys are slow learners, as it turns out.