If you don't get any satisfaction in a reasonable amount of time, you can also pressure them by filing a FOIA request for any action taken in regards to your claim.
Here is the TSA's FOIA rep's info:
# Transportation Security Administration
Catrina Pavlik
Associate Director
Office of Security
West Building, 4th Floor
Room 432-N, TSA-20
601 South 12th Street
Arlington, VA 22202-4220
telephone number: (571) 227-2300
fax number: (571) 227-1406