Whether the federal government may collect tax debts by revoking citizens' constitutional right to travel internationally

QUESTION PRESENTED Pursuant to a recently enacted federal statute, the State Department revoked Petitioner Jeffrey Maehr’s passport, and hence his constitutionally established right to travel internationally, not for reasons of national security or foreign policy, or because he is trying to sneak money out of the country, but simply to pressure him to pay a tax debt. The question presented is: may the federal government collect tax debts by revoking citizens’ constitutional rights until they pay up?