Congress keeps secret the top-notch nonpartisan explainers from the Congressional Research Service. Or tries to. Thanks to the Federation of American Scientists' Government Secrecy Project, you can read the reports your tax dollars paid for below.

•  "The Trans-Pacific Partnership (TPP) Negotiations and Issues for Congress," [2] Congressional Research Service (R42694), January 30, 2015, by Ian F. Fergusson, Mark A. McMinimy and Brock R. Williams.
• "U.S. Natural Gas Exports: New Opportunities, Uncertain Outcomes," [3] Congressional Research Service (R42074), January 28, 2015, by Michael Ratner, Paul W. Parfomak, Linda Luther and Ian F. Fergusson.
• "U.S. Solar Photovoltaic Manufacturing: Industry Trends, Global Competition, Federal Support," [4] Congressional Research Service (R42509), January 27, 2015, by Michaela D. Platzer.
• "Saudi Arabia: Background and U.S. Relations," [5] Congressional Research Service (RL33533), January 23, 2015, by Christopher M. Blanchard.
• "U.S.-Mexico Water Sharing: Background and Recent Developments," [6] Congressional Research Service (R43312), January 23, 2015, by Nicole T. Carter, Clare Ribando Seelke and Daniel T. Shedd.
• "Congressional Roll Call Votes on the Keystone XL Pipeline," [7] Congressional Research Service (R43870), January 22, 2015, by Lynn J. Cunningham and Beth Cook.
• "Oil Sands and the Oil Spill Liability Trust Fund: The Definition of 'Oil' and Related Issues for Congress," [8] Congressional Research Service (R43128), January 22, 2015, by Jonathan L. Ramseur.
• "Terrorism Risk Insurance Legislation in the 114th Congress: Issue Summary and Side-by-Side Analysis," [9] Congressional Research Service (R43849), January 20, 2015,  by Baird Webel.
• "China’s Mineral Industry and U.S. Access to Strategic and Critical Minerals: Issues for Congress," [10] Congressional Research Service (R43864), January 9, 2015, 2015, by Marc Humphries.
• "Keystone XL Pipeline: Overview and Recent Developments," [11] Congressional Research Service (R43787), January 5, 2015, by Paul W. Parfomak, Linda Luther, Richard K. Lattanzio, Jonathan L. Ramseur, Adam Vann, Robert Pirog and Ian F. Fergusson.
• "U.S. Crude Oil Export Policy: Background and Considerations," [12] Congressional Research Service (R43442), December 31, 2014, by Phillip Brown, Robert Pirog, Adam Vann, Ian F. Fergusson, Michael Ratner and Jonathan L. Ramseur.