Why are there trade secrets? Why is there classified information? Why is there encryption? Why are there door locks and window blinds and fences? What was the b

Why are there trade secrets? Why is there classified information? Why is there encryption? Why are there door locks and window blinds and fences? What was the big deal about Wikileaks if you have nothing to hide? If the US government or some MegaCorp wants to dump all of their correspondence and data, decrypted, onto the internet for my perusal, and unlock all the doors, safes, fences and windows on their buildings, then I might consider opening up my personal life to them as well.