The government isn't a single entity with a single goal. There already exist federal agencies with the goal of increasing security (see http://csrc.nist.gov/groups/ST/toolkit/), while others like the FBI have vested interest in increasing their powers of investigation. The executive branch has already made their stance clear, weakening encryption should not be the goal of any federal agency:

"We recommend that, regarding encryption, the US Government should:

(1) fully support and not undermine efforts to create encryption standards;

(2) not in any way subvert, undermine, weaken, or make vulnerable generally available commercial software; and

(3) increase the use of encryption, and urge US companies to do so, in order to better protect data in transit, at rest, in the cloud, and in other storage."

http://arstechnica.com/information-technology/2013/12/nsa-sh...