If drug reform is making any headway in the Lone Star State (and it is), there was little sign of it Wednesday at an Austin hearing of the state Senate Criminal Justice Committee. The committee is charged with examining current drug laws to see which are working and which are not and trying to come up with more effective drug policies.

With Mexican drug trafficking organizations sending billions of dollars worth of drugs across the border each year, much of it through Texas, state and local law enforcement agencies have been cooperating with federal agents to try to crack down on the trade. But it hasn't seemed to have had any impact, and that was a frustration for Sen. John Whitmire (D-Houston).

"It don't affect the price of it at all, which means it ain't made a dent. Still huge amounts are getting through," he said in remarks reported by Austin TV station KVUE. "If you know where it's coming from, why can't you do more about it?" he asked plaintively.

Whitmire's ignorance of the laws of supply and demand when it comes to drug prohibition is apparently equaled only by his ignorance of the US Constitution, and particularly the Fourth Amendment. At least, that's what his next comment suggested.

"If in fact so much of the narcotics is just coming up and down our highways and the main roads out of Mexico, why don't we just pull over more trucks?" Whitmire said. "It would be fun to try. I like that, zero tolerance."

Of course, every vehicle entering the US from Mexico must go through US Customs at the border. And then there's the Border Patrol checkpoints on highways leading north from the border. And then there's the saturation level patrols of those highways (although, to be fair, Texas cops are as interested in cars heading south as those heading north, because while the latter may contain drugs, the former may contain cash). But none of that is enough for Whitmire. Nor does it cause him to question his premises.

It looks like it will be business as usual in the drug war in Texas.