1.   Now, team members must be familiar with climbing specialties like Prusik Hitches and Petzl Stops, as well as night rescues and redundant backup systems.

2.   Crews also can use the equipment for locating natural gas leaks and for night water rescues, allowing crews to see much further than a light will cast.

3.   Floodlights were shut off during the late night rescue as Hainzl was brought to the surface to avoid damaging his eyes after nine days in darkness.

4.   Through the night rescue workers were using cranes and floodlights to search for more victims.

5.   Through the night rescue workers were using cranes and floodlights to search the top stories.

6.   Three hours after the collapse, arc lights were brought to aid the night time rescue.