If you have a heart condition, diabetes or some other ailment for which you can't make it a few days without medication, be careful about ordering drugs from Canada. As if U.S. Customs doesn't have enough on its plate already, it has embarked on a new program at the Canadian border of seizing packages of prescription medication intended for U.S. patients.

We're not talking about illegal prescriptions here, but legal ones. Since Canada's drug prices are lower than those in the U.S., the pharaceutical companies here and their lobbyists in Congress don't want you to get your hands on them.

Earlier this month, the Senate voted 68-32 to approve an amendment to the Homeland Security appropriations bill that would bar Customs from using federal funds to seize prescription drugs imported by individuals from Canada. The House passed a similar amendment in May. However, it remains unclear whether the amendment will make it into law. Drug-industry lobbyists are expected to push to scrap it when the bill goes to conference in coming weeks. The Bush administration and Republican congressional leaders have supported the industry's stance against Canadian imports.