All LAUSD schools closed by ‘credible threat’ of violence Prison Planet.com Posted on December 15, 2015 Posted in Aggregated No Comments Tagged with Featured Stories, Tile LA Times | Authorities said they plan a search operation of all the LAUSD’s more than 900 schools. Share this:Share Share on Facebook (Opens in new window) Facebook Share on Reddit (Opens in new window) Reddit Share on X (Opens in new window) X Share on LinkedIn (Opens in new window) LinkedIn Email a link to a friend (Opens in new window) Email