A special purpose lane system would require more extensive physical modifications to existing highways, but it promises the greatest gains in freeway capacity.
Besides creating the special zone, Ikea has also set up a notice board at the entrance to the cafeteria informing other customers of the group's existence and pleading with it to disband.
At present there are only 21 of these, whereas there are 280 specific addresses for countries and regions, such as dot.cn for China and dot.eu for the European Union.
Jim DeMint, a senator from South Carolina, wants his colleagues to adopt a voluntary ban on earmarks, a form of pork-barrel spending particularly reviled by fiscal hawks.