Maybe a naive question, but what would the risk be for me to sign this? I wonder if I (a US citizen) might get trouble the next time at the border? Or get a higher score in some database, that combined with other things might get me into trouble? Increased scrutiny from the IRS (which should have nothing to do with this, but "they" might say hell why not?)? Inability to get security clearances in future? Being target…
This is the so-called "chilling effect" that's one of the most worrying implications of mass surveillance on a society... people feel afraid to speak out due to a concern they may be added to a list of some sort, and face negative real-life repercussions due to expressing their free speech. There were a couple of times where I actually called the public contact numbers for NSA & GCHQ regarding particular stories abou…
Really, spotting your name on a petition isn't mass surveillance. It's not even a breach of privacy in any sense, because that's exactly what petitions are for.