Cloud vulnerability ?

IS there even the remotest chance that once we are all in the cloud someone, bad person, your government, unfriendly power, could shut you down? (China v Google). Is there any chance that getting everyone into the cloud is in itself a plot to gain centralized control and access our information? Of course this is paranoid – right? Silly me! Everyone is only seeking my benefit – right? I will therefore gladly relinquish control (what little I have) over my own destiny and jump into the cloud. Unfortunately it seems like sky diving – once you’ve jumped you clearly understand the meaning of the word committed – meaning there is(will eventually be)no way back – right?