MINOT (AP) - Dennis Thompson, who lives near the Canadian border and travels to Canada often, says $50 is a steep price for an identification card.

"Twenty dollars is better than $50 any day," said Thompson, of Sherwood. "We have lived here so long and been friends with Canadians that it's just kind of hard to comprehend that we have to even do this. But I understand it, the way the world is going. I don't want some terrorists coming across, either."

The ID rules were part of an intelligence overhaul law, overwhelmingly approved by Congress, to tighten U.S. borders against terrorists. But some say the rules are too restrictive, and some in Congress want to delay them. They are set to take effect in 2008.

Sen. Byron Dorgan, D-N.D., says he has introduced a bill to exempt children under 18 from the passport card requirement, create a system of free day passes for travel to Canada and set a ceiling of $20 on the cost of a new passport identification card.

"It's critical to protect this country from terrorists, but that doesn't mean placing unfair financial burdens on American families who wish to travel back and forth to Canada to visit Grandma and Grandpa," Dorgan said.

Kristy Mantei is a U.S. citizen living in Canada who regularly travels to Bowbells, to her job as Burke County Social Services director. She and her husband have passports, but the identification card plan would affect family members and friends who want to visit her, she said.

"I could definitely see it being a nuisance for a lot of people," she said.

The Homeland Security Department also is considering free day passes available to border crossers who did not realize they needed ID cards or who must make an unexpected trip on short notice.