GSA Contrators Given Access to Information Systems without Background Checks

I realize that our government is so large that often things slip through the cracks, but how can it happen that the General Services Administration let contract workers have access to their information systems without being subjected to a background check?

IG: GSA contractors get system access before background checks

This excerpt from the article says it all: In its audit, the IG said current safeguards do not guarantee that officials will complete investigations before granting access to agencies’ information systems. Even security measures mandated by Homeland Security Presidential Directive 12, which requires credentials for all federal employees and government contractors after they have undergone a background check, does not offer that protection.

In this day and age, information systems are a treasure trove to those with nefarious motives. How can our government not recognize that and take our security more seriously? Shouldn't there be some accountability here?