Special Notice DEPT OF DEFENSE DEFENSE THREAT REDUCTION AGENCY (DTRA): Research and Development Innovations Broad Agency Announcement. This announcement is a competitive solicitation for research and development proposals focused on countering and deterring Weapons of Mass Destruction (WMD) and other emerging threats. The Defense Threat Reduction Agency (DTRA) is seeking innovative technologies in the technology readiness level (TRL) 3-7 range that will lead to new or improved technical solutions. No formal Requests for Proposal will be issued.