ALTERNATIVE JET FUELS: Federal Activities Support Development and Usage, but Long-term Commercial Viability Hinges on Market Factors, GAO-14-407: Published: May 7, 2014. Publicly Released: May 7, 2014. DEPARTMENT OF HOMELAND SECURITY: Progress Made; Significant Work Remains in Addressing High-Risk Areas, GAO-14-532T: Published: May 7, 2014. Publicly Released: May 7, 2014. FEDERAL VEHICLE FLEETS: GSA Has Opportunities to Further Encourage Cost Savings for… Continue Reading