Zombie Apocalypse

The button sat on a table in front of me.  This button had the power to change the world forever.  One press or that button and the deadly zombie virus PX-42 would be released into the world.  If you inhale the virus you would transform into a zombie in a matter of days.  I sat staring at the button wondering why I was here.  I had asked my captors why they had brought me here but they wouldn't tell me anything.  I glanced at the locked door behind me.  It was a mechanical metal door that could only be opened from the outside.  I yawned and hoped they would let me out soon.  The door glided open and a security guard came in holding a tray of food.  He handed it to me and turned to leave but the stopped.  "When are you going to press the button?" he asked.