Since disclosing massive global surveillance programs, the former US National Security Agency (NSA) contractor Edward Snowden has been campaigning to strengthen privacy and the right of citizens to not be monitored by government agencies. Nothing to hideSnowden published his memoir, Permanent Record, in 2019 as a means to convey his full story – including his upbringing and how he came to be the whistleblower we all now know. Quote of the dayThis article is part of TechRadar Pro's QOTD project to provide an insight into the minds of the brightest and most recognized figures in the technology industry today and in years gone by. Read the full series here.In this book, the former NSA contractor used several analogies in a chain to underline what the right to privacy actually means, as he saw it, and to stress that just because you aren't using a particular right, that doesn't mean it shouldn't apply. He argued that various freedoms may not apply to you, or make sense today, but that they may have meaning for you or those you know in the future. Privacy, too, fell into this category, and he urged more and more people to defend their rights.Nothing to fearThe legacy of Snowden, since he first helped journalists reveal the breadth and extent of government-led spying in 2013, is far-reaching. His revelations sent shockwaves throughout not only the intelligence-industrial complex but society at several levels. For example, there's been a dramatic surge in the use of software and applications in which end-to-end encryption can prevent communications data from being intercepted, either in a targeted or indiscriminate way. Many of the practices he revealed were wound down thanks to the USA Freedom Act, while a US federal court ruled in 2020 that one of the NSA's mass surveillance programs, in which bulk telephone data was collected, was done so illegally and possibly unconstitutionally. His disclosures also fuelled data protection movements and new laws around the world, like GDPR in the EU.