Medics attend a ventilated trauma patient brought in from northern Saskatchewan.

Above photo provided courtesy of Saskatoon Health Region. The region is gearing up on May 24-27, 2007 for CAMATA 2007 Aeromedical Conference and Exhibit. Radisson Hotel. Saskatoon, SK. Email: info@camata.ca

NASA workers gather beside an ambulance near a building where police were involved in a standoff with an armed gunman at NASA’s Johnson Space Center in this image from KPRC TV footage shot in Houston, Texas, April 20, 2007.

Paramedics provide first aid to an injured special police officer following an attempt to enter a house where an unidentified gunman took cover in Wassmansdorf, south of Berlin April 20, 2007.