The Department of Defense has a comprehensive plan called Con Plan 8888
It differentiates between radiation zombies and diseased zombies.
They do drills with people dressed up as and acting like zombies.

The Center for Disease Control (CDC) has a zombie awareness program.
With a quarantine of the sick and hungry.

Are they expecting a real life drama
Of the movie The Night of the Living Dead?

Has the first wave of zombies already hit?
Are they the ones wearing those silly face masks?