Sentence:  Now we are liberal with our innermost secrets, spraying them into the <WSD>public</WSD> ether with a generosity our forebears could not have imagined. Where we once sent love letters in a sealed envelope, or stuck photographs of our children in a family album, now such private material is despatched to servers and clouds operated by people we don't know and will never meet. 
Meaning of the word marked with <WSD> tags:  Open to all members of a community; especially, provided by national or local authorities and supported by money from taxes. (from 15th c.)