"But how is legal plunder to be identified? Quite simply. See if the law takes from some persons what belongs to them, and gives it to other persons to whom it does not belong. See if the law benefits one citizen at the expense of another by doing what the citizen himself cannot do without committing a crime."
--Frederic Bastiat, The Law, 1850

This is one of the best and most succinct quotes of all time on this subject. I've read Bastiat's "The Law" nearly a dozen times and I am sure I will read it many more times in the future.

Recently, in fact, I quoted the surrounding context of this very passage you cite here, Dan, in a post on my blog concerning the expansion of suffrage to women with the 19th Amendment. You can find this post, "Lest I Be Confused: On Women Voting" here:
http://eric.langborgh.com/?p=292

My main point in that post (which came out of response to an early post concerning the ill-fruits of feminism) was simply this: When the constitutional order and the proper role of government is subverted, thus converting it into an instrument of legalized plunder, it is no wonder the right to vote becomes the paramount concern. And when we expand the scope of suffrage to include more people, the result is then to "add a lot of would-be plunderers to the pot," thus resulting in a period of explosive, unconstitutional growth for the government.