It is really important that we all look at this piece of legislation - it is truly terrifying. It allows the government to aggregate all data that they keep about you. It would mean that the government was exempt of the key points of the Data Protection Act. NO2ID have presented a clear argument over this, and it is seems that Jack Straw is wavering. So please write to your MP - it is really easy.
So long as you make it absolutely clear that you refuse consent to have your information shared under any Information Sharing Order, and ask that they oppose Clause 152, whatever else you say is completely up to you.
You have a chance to safeguard our liberty today, sending that email will take you a few minutes, not stopping this clause will lead inevitably to every aspect of your life being visible to the state.