In response to increased interest in the measures used for cost of living adjustments, I testified about the methods BLS uses to calculate our family of Consumer Price Indexes on Thursday, April 18, before the U.S. House of Representatives, Committee on Ways and Means, Subcommittee on Social Security. We will post video of the hearing when it becomes available, but you can read my statement (PDF).
Update, April 23: The video of the hearing can be seen here, on the Library of Congress THOMAS website. (We suggest starting the video at about the 16-minute mark.) http://thomas.loc.gov/video/house-committee/hswm/31624699.