A letter report issued by the Government Accountability Office with an abstract that begins "The Department of Health and Human Services (HHS) has established timelines and milestones for the 72 Public Health Emergency Medical Countermeasures Enterprise (PHEMCE) priorities--33 activities, 25 threat-based approaches, and 14 capabilities--that HHS selected as key to fulfilling PHEMCE strategic goals. However, HHS has not made spending estimates for its medical countermeasure development or procurement priorities (priority countermeasures) publicly available. In the PHEMCE implementation plan, HHS has grouped the 72 PHEMCE priorities into three time frames for completion--near-term (fiscal years 2012 through 2014), midterm (fiscal years 2015 through 2017), and long-term (fiscal year 2018 and beyond). For 21 priority activities, 10 priority threat-based approaches, and 8 priority capabilities, HHS and PHEMCE have identified specific deliverables, each tied to a milestone or set of milestones that delineate the steps necessary to complete deliverables, and established more specific timelines for completion of deliverables and milestones. For example, HHS's Office of the Assistant Secretary for Preparedness and Response (ASPR) is to lead the development of medical countermeasure requirements, which outline countermeasure quantity, type, and desired characteristics. Deliverables are the threat-specific requirements, such as for antidotes for mustard gas and other …