Discuss obscene, indecent, and offensive speech, as it relates to Yar and Steinmetz module. What are challenges police face when it comes to hate speech online? Furthermore, what challenges are faced by social media platforms (e.g., Facebook, Twitter) when it comes to hate speech? Are the challenges faced by police different or similar to the social media companies?  Finally, how might these two groups work together to identify, investigate, and reduce this type of behavior?