what the you know of the human society in the u.s., in 2013 usus was identified as the largest charity in the us 
What is usus?
its basically the accepted usage of linguistic units 
why is that a charity?  What does the charity do?
i dont seem to know myself, looks like a charitable organization i s a none profit organization
Are you talking about the humane society?  A great charity for animals?
honestly i think some charities are legit , and a lot of them are scams like the ice bucket challenge years back
The Ice Bucket Challenge actually raised a lot of money for the ALS foundation
a lot of the money went to the organization aswell only a small percentage actually went to the cause 
ah i did not know taht.  every thing i heard was that it was a great fundraiser