This kind of putting a l l the responsibility on Kareena and Saif is - imo - not fair at all. There are so many unknown people involved in the preparation of those kid's birthday bashes that it is not at all faisable to controll an information leak of someone who wants to make cash with that (and 'sources' can be sure to not get exposed by name). That is the same for any other celebrations/festivities even when only between friends and family. Also the best known papparazzi have their many 'co-workers' who would keep attention at the celebs' residence or at the airport.
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