A method and apparatus for communication in a wireless sensor network. One echo plug has a pin and a circuit. The wing system can further include a drive system having a drive link operatively coupleable to both the first and second deployable lift devices, and a control system operatively coupled to the drive system. Photo-resist portions having a first exposure to the radiation, second exposure to the radiation, and third exposure to the radiation are created. The container also includes a securing mechanism coupled to one of the first clam shell member and second clam shell member, configured to selectably couple the first clam shell member to the second clam shell member.