DHS Announces Expansion of Cyber Student Volunteer Initiative
dhs.gov
dhs.gov
Secondly, the best way to get a technical government position (it's pretty competitive), whether it's at a federal laboratory or DHS, is to get to know the right people. Yes, it's more about who you know than what you know.
A Secret clearance isn't a romantic carte blanche to read secret documents of your choosing. That world is compartmentalised and you will be fed information on a "need to know" basis. In a computer analogy, a clearance isn't a loosening of permissions, but a tightening, in that you are agreeing to harsher penalties if you stray outside the boundaries of what others decide you "need to know".
The TSA job description also contains this nugget, "Assisting with Digital Forensics, e-Discovery, and cyber threat/intelligence." I would be curious to know what cyber threats/intelligence are going to be discovered via the TSA.
The airport screeners aren't the whole of the TSA, just the most visible part of it.
Edit: the title's been changed