GREENDALE, Wis. — School buildings in the village of Greendale seem to be safe enough for the hundreds of children who use them every day.

But apparently not on election days, when law-abiding citizens lurk in the halls, looking to cast a ballot.

At the urging of the village’s School Board and other school administrators, the Greendale Board of Trustees has agreed to place a nonbinding referendum on the November ballot asking residents whether polling places should be removed from elementary schools — a move, which, some say, could lead to voter disenfranchisement.