Daniel_Stuckey writes: How risky is it to use the words "bomb," "plague," or "gun" online? That was a question we posed, tongue in cheek, with a web toy we built last year called Hello NSA. It offers users suggested tweets that use words that drawn from a list of watchwords that analysts at the Dept. of Homeland Security are instructed to search for on social media. "Stop holding my love hostage," one of the tweets read. "My emotions are like a tornado of fundamentalist wildfire." It was silly, but it was also imagined as an absurdist response to the absurdist ways that dragnet surveillance of the public and non-public Internet jars with our ideas of freedom of speech and privacy. And yet, after reading the mounting pile of NSA PowerPoints, are all of us as comfortable as we used to be Googling for a word like "anthrax," even if we were simply looking up our favorite thrash metal band? Maybe not. According to a new study of Google search trends, searches for terms deemed to be sensitive to government or privacy concerns have dropped "significantly" in the months since Edward Snowden's revelations in July.