I am going to be traveling through Narita en route from Beijing back to the US, and have 4 hours' layover. Is it possible to get a decent meal there (say, like at the restaurants on the land side of the airport) without passing through immigration? Or, if I do have to go through immigration, are the lines to get back to the air-side of the airport manageable? It has always been a pleasure of mine to have a lunch (or whatever) at Narita in the middle of these flights, and to stock up on o-nigiri and other snacks for the long flight back to the East Coast, and I am not sure what impact 9/11 has had on the Japanese airport security situation. Thanks!