This has been in the news a lot due to the indications that many hospitals don’t have the ability to respond to a mass casualty event such as a terrorist attack or a natural disaster.
The House Committee on Oversight and Government Reform, Majority Staff has released its report "Hospital Emergency Surge Capacity: Not Ready for the 'Predictable Surprise.'" The report is available at http://oversight.house.gov/documents/20080505101837.pdf
For the links to the related snapshot reports for various hospitals as well as information about the hearings being held this week, go to http://oversight.house.gov/story.asp?ID=1929
Links for the prepared testimony of the various witnesses are also available at this site.