Eye movemement desensitization therapy (EMDR) - famously practised by Prince Harry, is recommended for PTSD.

Source: https://www.dailymail.co.uk/health/article-12781207/melancholic-depression-little-known-treatment.html?ns_mchannel=rss&ns_campaign=1490&ito=1490

It seems that the general public has gone through a kind of systematic desensitization to the issue.

Source: https://www.ctvnews.ca/politics/tom-mulcair-trudeau-hoodwinked-everyone-on-climate-change-1.6322061

Lecturer in Law and Justice Todd Mildon said that he thinks the reason for desensitization is how accessible information is on social media.

Source: https://cwuobserver.com/24356/news/poll-finds-cwu-students-have-become-desensitized-to-police-brutality/