Protesters gather outside the U.S. Capitol on Jan. 6, 2021. (Photo: TapTheForwardAssist via Wikipedia/CC) A security researcher based in Vienna led a fast-paced, crowdsourced effort to archive posts, videos and images from the social network Parler after rioters on Wednesday violently stormed the U.S. Capitol. Parler, launched in 2018, was modeled on Twitter but with a self-proclaimed focus on "free speech." It has been "adopted by American conservatives as an alternative to mainstream social media platforms," says threat intelligence firm Recorded Future. Following the November 2020 U.S. election, "millions of users registered for accounts on Parler." The Vienna-based researcher and other researchers say that they found a way to forcibly archive Parler content to retain communications that may have touched on the planning and execution of the Wednesday riot.