Since the 2001 terrorist attacks, the United States government has allocated nearly $50 billion to address the threat of biological weapons. U.S. funding for bioweapons-related activities focuses primarily on research for and acquisition of medicines for defense. Funding also goes toward stockpiling protective equipment, increased surveillance and detection of biological agents, and improving state and hospital preparedness. The increase in this type of funding is mainly for Project BioShield. Significant funding also goes to Biomedical Advanced Research and Development Authority (BARDA), part of HHS. Funding for activities aimed at prevention has more than doubled 2007 and is distributed to 11 federal agencies. Efforts toward cooperative international action are part of the project.