Their definition of unforeseen and yours may be very different. Also check that the policy will cover you for the entire trip, not just a portion of it. Some other important clauses that are in some policies and not other are coverage for operator failure and destination problems. If your policy covers you for operator failure, you will be covered if the travel agency, airline, hotel, resort or other travel partner you are relying on closes their doors. Make sure that the fine print does not limit this coverage to the provider declaring bankruptcy.
Many businesses close their doors without ever declaring bankruptcy.
Also be aware that if you buy your trip cancellation insurance from your travel agent it will not cover you in the event that that agency closes its doors. Destination problems can quickly ruin a vacation. From natural disasters to terrorism, many problems can arise once you have reached your intended destination. Be clear what your policy will cover. If the policy is good it will allow you to return home earlier than your scheduled date and will completely pick up the cost.