Are the purposes of government today the same as those which the framers described in the preamble?

Yes. Same Constitution....same purposes. <--that's in short.

The purposes and aims of the US Government are similar and resonate with those of the founding fathers.

Our country's population is exponentially larger, and our place in the world has grown enormously in over two centuries.

Many countries, starting with France, duplicated our democracy soon after we became a beacon of "We the people...". This yearning for a better life through effort, talent and luck was designed by our forefathers.

The current administration has definitely "established justice" with ousting Sadam Hussein and has done well with post-911 "insure domestic tranquility" as we have NOT endured another terrorist attack on American soil since.

The fact we are a fractured nation, divided over many issues (currently the most debated are the environment, healthcare and the war) does not affect the purpose of our government--but drive emotions about the issues and our elected government representatives of "the people".