While aerospace and defense markets continue to be strong for high-frequency electronics, homeland security represents a sector of growing interest. In recognition of the increasing importance of security applications, the 2009 ARMMS Conference will host a focus session on security applications this coming Fall. Scheduled for Nov. 23-24, 2009 at the Rockingham Forest Hotel, in Corby, UK, the technical conference will devote a good part of its first day to security issues and counter terrorism.