For the better part of a century, there was one thing even the U.S. government would not do to pad the profits of defense contractors.

Now, more than 80 years of precedent may be coming to an end.

On Thursday, lawmakers in the House approved a “pilot program” in the pending Pentagon budget bill that could eventually open the door to sending billions to big contractors, while providing what critics say would be little benefit to the military.

The provision, which appeared in the budget bill after a closed-door session overseen by top lawmakers, would allow contractors to claim reimbursement for the interest they pay on debt they take on to build weapons and other gadgets for the armed services.

“The fact that we are even exploring this question is a little crazy in terms of financial r

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