Reference:
Stohlgren, T., C. Jarnevich, and C. Giri (2010). Modeling the human invader in the United States. Journal of Applied Remote Sensing, vol. 4, 18 Feb. 2010

International Relations: Landsat on the Agenda
Strengthened cooperation between the United States and the Philippines to include bilateral cooperation on the Landsat Program, according to White House fact sheet.