Deus Ex: Invisible War -
Once the scientist is in his office, you can use this switch to open the weapon case. (Doing so will seal off his office so if you want to check it out, do so before you press the switch.) You'll want to make room in your inventory for the mag rail. Select it and Donna Morgan of the WTO thanks you for uploading the schematic and directs you to the biolab on the second floor.