Even as the economic downturn causes mayhem all around us, some peopleremain unaffected by the current crisis thanks largely to the nature of theirjobs. Let’s face it; we all feel our hearts pounding every time the officerumor mill is abuzz with news of impending layoffs. In such a situation, it’sonly human to wish we had qualifications that gave us better job securityagainst the vagaries of economy.Since layof...