Thinking up-joined

Get yourself a new super-duper biometric passport with a chip to prove your identity and speed id checks at airports, and when you come back from your holiday you find the chip has failed. What do you do, and what do the Immigration officers do?

The chip is the key to the success (and I use the term loosely) of the entire scheme, so why does it only have a two year warranty??? This is absolute madness -- which is par for the course with id cards.