Yoshindo Yoshihara is not looking forward to his trip to the United States this month. Ever since Sept. 11, Yoshihara, a master swordsmith, has had difficulty checking his baggage through U.S. airports. For security reasons, United Airlines has insisted that his chest of four swords, each one worth about 3.5 million yen, remain unlocked.

"I am afraid they will be stolen in transit," says Yoshihara, "but I obviously cannot take them on board." Sixty-year-old Yoshihara is reluctant to switch airlines because he has accumulated too many rewards with his frequent-flier program.

Such are the concerns of a modern-day swordsmith. While Yoshihara's techniques date back to 12th-century Japan, his workshop in Katsushika Ward, northern Tokyo, is hardly in a feudal rut. Yoshihara's fleece-clad son, age 36, like to have the radio blaring as he works, while one of Yoshihara's three disciples enlivens his corner of the studio with a Takanohana poster. Then there's the wall of Yoshihara's living room filled with his grandchildren's crayon drawings.