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Next on the NASA Space Shuttle Status Report: As Discovery prepares for its move to the Vehicle Assembly Building, its external tank is outfitted with new sensors and foam protection. Atlantis is equipped with cameras and laser systems for its next flight. And Endeavour receives an external airlock to prepare for future dockings with the International Space Station_ The NASA Space Shuttle Status Report starts right now. I'm Jeremy Graeber, NASA test director, and this is the NASA Space Shuttle Status Report. Final testing and closeouts continue in preparation for Discovery's move to the Vehicle Assembly Building and then to Launch Pad 39B. STS-121, Discovery�s mission to the International Space Station, is now targeted for liftoff in July. Meanwhile, in the Vehicle Assembly Building, the external fuel tank for STS-121 was equipped with four new liquid hydrogen engine cutoff sensors. These sensors indicate whether the tank still has fuel during its climb to orbit. The tank was lifted from the checkout cell and placed horizontally on a transporter where technicians will reapply thermal protection foam insulation. In the Orbiter Processing Facility Bay 1, orbiter Atlantis has new ca