[Assignment: 48-DPA-N_USGS_Katrina_12-8-05] [Department of the Interior senior officials, including] U.S. Geological Survey (USGS) [Acting Director P. Patrick Leahy, at] USGS-sponsored presentation on Hurricane Katrina [48-DPA-N_USGS_Katrina_12-8-05_DOI_3796.JPG]