Concerns: The NSA, Spying and Basic Freedoms
The chart above indicates the estimated level of public interest or concern, over time, in issues related to the the National Security Agency, Spying and Freedom of Speech.
The National Security Agency= Blue
In this comparison, the increased interest in and concerns about recent activities of the federal National Security Agency has been far greater in all of the rated top cities in the United States.
A closer and more detailed picture of this data can be viewed at Google Trends.