No job is secure because people are not indispensable.The present recession is proving that fact. People can be replaced or fired for low productivity or being overqualified. Some people become redundant. In one situation a person was fired and two were hired to replace her!She was too efficient! Sometimes the retirement age is lowered or years of service used to get rid of one; and if you fall within that group,you have to go too. Some businesses close down.End of story.Even government jobs have closed. Which job is secure?