At a seminar I was helping to give I was asked, "What is the most valuable asset to protect?". My answer was easy - your ability to earn an income.
There is no more important element of your current financial security and future financial success than being able to earn an income through work. I find that most families plan very well for things like car repairs and leaking faucets, but do not plan well for risks to their job and earning an income. Fortunately, there are many solutions out there to help manage these risks and they don't all involve buying insurance! No one plan fits all people.
Worry over job security has increased substantially over the last couple of years, and for good reason. But remember, the only difference between a worry and a plan is action.