The use of biomass as an energy feedstock is emerging as a potentially viable alternative to address U.S. energy security concerns, foreign oil dependence, rural economic development, and diminishing sources of conventional energy. Biomass (organic matter that can be converted into energy) may include food crops, crops for energy (e.g., switchgrass or prairie perennials), crop residues, wood waste and byproducts, and animal manure. Most legislation involving biomass has focused on encouraging the production of liquid fuels from corn.

The Central Asian states (Kazakhstan, Kyrgyzstan, Tajikistan, Turkmenistan, and Uzbekistan) face common security challenges from crime, corruption, terrorism, and faltering commitments to economic and democratic reforms. However, cooperation among them remains halting, so security in the region is likely in the near term to vary by country. Kyrgyzstan's and Tajikistan's futures are most clouded by ethnic and territorial tensions, and corruption in Kazakhstan and Turkmenistan could spoil benefits from the development of their ample energy resources.

Discussions of U.S. and global energy supply refer to oil, natural gas, and coal using several terms that may be unfamiliar to some. The terms used to describe different types of fossil fuels have technically precise definitions, and misunderstanding or misuse of these terms may lead to errors and confusion in estimating energy available or making comparisons among fuels, regions, or nations. Fossil fuels are categorized, classified, and named using a number of variables.

Since 1995, the United States has provided North Korea with over $1.2 billion in assistance, about 60% of which has paid for food aid and about 40% for energy assistance. As of early September 2009, the United States is not providing any aid to North Korea, except for a small medical assistance program. The Obama Administration has said that it would be willing to provide large-scale aid if North Korea takes steps to irreversibly dismantle its nuclear program. U.S. aid fell significantly in the mid-2000s, bottoming out at zero in 2006.

Many in Congress, the Bush Administration, and the non-governmental organization (NGO)
community believe that the 110th Congress set the stage for action on foreign aid reform by the
111th Congress and the new Administration in 2009.
Since the terrorist attacks of September 11, 2001, the role of foreign assistance as a tool of U.S.
foreign policy has come into sharper focus. President George W. Bush elevated global
development as a third pillar of national security, with defense and diplomacy, as articulated in
the U.S.