What can you do if you're scheduled to take a trip out of the country and you feel the need to change your mind because of a terrorist attack, like the one in London Thursday morning? Travel officials say the best way to protect your money is to purchase travel insurance. Officials say most companies now offer this service in the event something happens and you need to change your plans. But be careful; officials warn just because it's insurance doesn't mean it covers your specific needs, such as terrorist attacks. Travel agents say now that most companies offer insurance, they're less likely to help you in an emergency.