You have a preview view of this article while we are checking your access. When we have confirmed access, the full article content will load. Mohammad Iqbal used to command more than 1,000 soldiers in Afghanistan, but late last year he was working maintenance at a hotel near where he lived in El Cajon, Calif., a working-class suburb of San Diego. Few outside the Afghan community there knew that the slight, soft-spoken father of six was anything more than another ordinary immigrant.