Instruct: Retrieve semantically similar text.
Query: WebCam<br>Tom was concerned about his online privacy. He read about the subject online, and wanted to protect himself. He realized his webcam was uncovered. He knew it would be easy for a hacker to watch him. He covered the webcam with duct tape.
The webcam will show a black screen
Tom used the internet a lot
The incognito feature makes sure you are safe from hackers
The wall should be safe.
There is at least one computer.
Tape is on the cam
the situation is dangerous
People maintain privacy using Ricochet.
security had to be tightened for the visit
there have been restrictions. 
this is about how to protect your identity
Will knows how to use his camera
Tom got free internet
Tom has hung out before
Watchdogs are helpful in these situations 
There is some action goings on.
Will learned how to use his camera
Data security is important.
The post talks about pictures posted on the internet. 
something obstructed his view
Keep the moth out of your vision.
Takimag can be found on the internet
Tom had a cam on his laptop
Tom never used his webcam
Tom read books from the library about online privacy