Available in HD. HD FOOTAGE // FIELD DISK // National Park Service holds a press conference to announce details of new, updated visitor services, programs, and activities for the 2011 July 4th Independence Day celebration, with focus on safety and personal health in hot and humid weather. WHO: Jon James, Deputy Superintendent, George Washington Memorial Parkway, NPS; Karen Cucurullo, Acting Superintendent, National Mall and Memorial Parks, NPS; John Stanwich, Deputy NPS Liaison to the White House; Teresa Chambers, Chief, U.S. Park Police, (USPP); Karen Baratz, Spokeswoman, Capital Concerts, Inc.; Captain Bob Reiss, U.S. Public Health consultant to the NPS; and Col. Tom Steiner, Public Information Officer, Pyro Shows Inc. //