Kenji Ogasawara returned from a visit to Hawaii seven years ago on a natural high. Partially paralyzed by multiple sclerosis in mid-1994, he left for Honolulu later that year in a wheelchair. On his return to Narita two weeks later, he stepped off the plane on his own two feet.

The apparent miracle, he says, was the result of treatment he had received that utilized the world's most controversial herb -- marijuana.

"I couldn't believe the results -- both physically and mentally," said Ogasawara, 36.