Should we have urine testing for Welfare applicants?

Like a lot of folks in the United States, I have a job. I work, they pay me. I pay my taxes and the government distributes my taxes as they see fit. In order to get that paycheck, I am required to pass a random urine test, which I have no problem with. And the main reason I have no problem with a drug test is because I have nothing to hide. What I do have a problem with is the distribution of my taxes to people who are doing drugs and never have to pass a urine test.
Shouldn't one have to pass a urine test to get a welfare check, because I have to pass one to earn it for them?
Please understand, I have no problem with helping people get back on their feet. I do, on the other hand, have a problem with helping someone sit on their butt. Could you imagine how much money the state would save if people had to pass a urine test to get a public assistance check?
A 1999 Michigan law called for a pilot program of random substance abuse testing in at least three counties. Drug testing started at the beginning of October in Alpena, Presque Isle, and Berrien counties and a designated area of Western Wayne County, including some of Detroit's west side neighborhoods.
All the new applicants for that area had to provide a urine sample to officials or give up their right to any government aid. In addition, any applicants already in the system had to submit to random testing.
A class action lawsuit was filed by the Michigan chapter of the ACLU two days prior to schedule testing. The suit charges that the program violates the constitutional rights of welfare recipients. Two Michigan mothers and a Detroit organization (The Westside Mothers) were named in the suit. The organization focuses on representing hundreds of welfare recipients and their families. Kary Moss, executive director of the ACLU in Michigan says, "The Fourth Amendment guarantees that no individual in this country can be subjected to a search by the government unless there is reasonable suspicion that they have committed some crime, welfare recipients may be poor, but that's not a crime not yet, anyway."
I have spoken to a number of people in person and on forums about their thoughts and the ones that oppose this have the same stance, that it is unconstitutional. In my opinion, it seems that I am not pushing random drug test onto any random citizen. The welfare recipient chooses to get help from the government. So just like submitting paperwork, you must submit a urine sample. Another stance people talk about is false positives. Well if they claim false positive, then do a hair follicle test.
If urine test are unconstitutional, then scrap the whole welfare program. Let your voice be heard on Political Majority.com.