We use some very specialized equipment and it travels a great deal. The nice thing is that some of the items we transport are PUSG: Property of the United States Government. Because of this, we're not hassled as much as some screeners would like

However, we do take precautions to ensure the safety and security of the equipment. We generally use rolling SKB rackmount cases, Hardigg ATA and SKB shockmount shipping cases that are *always* locked.

http://www.casesbymasco.com/series_list_c4-185.asp
http://www.casesbymasco.com/series_info_c1-178.asp

The rolling cases go on board with us and the shipping cases are checked. I would say try getting a case like SKB, Pelican, Hardigg etc to house your stuff and if, er, when the TSA screener tries to open the case, inform him/her that the items inside are very delicate.