[steve-b]

Again, there is no legitimate reason for any public bus route to enter a secure facility. (Creating a situation where random citizens who have no business at the facility may be required to show ID dosn't count as "legitimate".)

[On the Road to Serfdom]

There are at least three potential policies, listed from most intrusive to least intrusive:
1. No public buses allowed
2. Allow one of the many public bus routes to enter but check ID’s. Post a warning on this particular bus so everyone knows what to expect and can pick another bus if they have a problem showing ID. Federal Employees are dropped off at their buildings.
3. Allow public buses to enter with no passenger ID Checks.

I can see a very good reason not for 1. If many Federal employees take this bus why not drop them off at their buildings within the complex? Given this, I can also see why 3 might not be the best either. Why exclude a reasonable middle position and make it a false choice between 1 and 3?