While have a 'go-bag' is good idea (something that few witnesses really understand how to make an effective one, or know the skill-sets required to survive a local natural disaster), I have always been rather cynical about the Governing Body's push to have them. This is because I believe that this whole 'disaster, go-bag and relief committee' thing is to increase the Brotherhood's fear of the future, while making them mentally more dependent in the Organization.
However, as anyone who have had studied EMT healthcare or even deeply read into the events after cyclone Katrina, the Haiti earthquake or the 2004 Indian Ocean tsunami, in a real emergency you will on your own for three to four WEEKS before there is any outside assistance start to trickle in. Proving a silly two day backpack with a couple of cans of beans, is not going to get you very far.
Like many things the Governing Body says and 'arranges' ... its not going to you any good, when half of your family are pissing blood like sprinklers, while you're are waiting for the Bookstudy conductor's f****'n phone call.
(sorry for the language)