MS06-040 Patch a trojan horse for NSA

When the Department of Homeland Security pushes so hard for everyone to patch a Microsoft security hole, I get suspicious as in here; DHS Recommends Security Patch to Protect Against a Vulnerability Found In Windows Operating Systems

If the patch can prevent this problem;

if exploited, could enable an attacker to remotely take control of an affected system and install programs, view, change, or delete data, and create new accounts with full user rights.

Couldn’t this patch also enable such a ‘backdoor’ as well? Wouldn’t that be such a nice gift for all the nice people in the NSA, CIA, FBI and of course DHS. 😉