New or updated reports from the Congressional Research Service that have not been made readily available to the public include the following (all pdf).
Afghanistan Casualties: Military Forces and Civilians, January 18, 2012
Spectrum Policy in the Age of Broadband: Issues for Congress, January 5, 2012
The Federal Bureau of Investigation and Terrorism Investigations, December 28, 2011
Economic Downturns and Crime, December 19, 2011