1.  Tone is the attitude a writer takes towards his subject: the tone can be serious, humorous, sarcastic, ironic, inspiring, solemn, objective, cynical, optimistic, critical, enthusiastic...
Which word do you think best describes the tone of Mr. Lowry's commentary?  Explain your answer.

2. The purpose of an editorial/commentary is to explain, persuade, warn, criticize, entertain, praise or answer. What do you think is the purpose of Mr. Lowry's commentary? Explain your answer.

3. Merriam-Webster Dictionary defines valid as: well-grounded or justifiable: being at once relevant and meaningful (2nd definition).
Do you think Mr. Lowry makes a valid point about Facebook?  Explain your answer.