That will be the first lawsuit filed by ACLU since they started the "Don't Filter Me" campaign.
According to ACLU, it seems that the sector uses a system based on a blacklist websites' links.
Each subscriber receives a list of sites arranged by category and some LGBT websites have been blocked because they were in the "sexuality" category.
ACLU attorney Joshua A. Block specifies that they did not "yet detected a single anti-LGBT website that is being blocked by the filter."
"It's sort of jaw-dropping, when you keep flipping the pages, how many things are blocked by this. With many other schools, including schools that use the same filter, we've been able to have follow-up conversations and solve the problem with them. But this [district] has been very intransigent."
District Superintendent Tim Hadfield said that he "certainly do not want to violate students' or staff's constitutional rights" but that he wanted "to protect our students and staff from inappropriate material on the Internet."
Education Week reports that "both Block and Hadfield agree the Camdenton district did take action to unblock the four sites that initiated the complaint, including the homepages for Day of Silence, The Trevor Project, the GSA Network, and the Gay, Straight, Lesbian Education Network."