May 26, 2002 Disabled Veterans Lobby for Full Retirement Pay By THE NEW YORK TIMES WASHINGTON - On Oct. 8, 1967, when John Lawton began moving through the fog and rain of Vietnam to reach a group of fellow American soldiers ambushed in a rice field, his retirement pension could not have been farther from his mind. But much of that pension vanished that day, the moment bullets ripped into his chest, leg and arm. To help disabled veterans like Mr. Lawton live with their wounds, the government gives them a monthly check, called disability pay. But because of a...