Complex sentence: The feed was designed to discuss operational details of the raids, but when police asked for a social media blackout the hashtag was overwhelmed by internet users posting pictures of cats to drown out serious discussion and prevent terrorists from gaining any useful information.
Split into simpler sentences: The feed was designed to discuss operational details of the raids, but when police asked for a social media blackout. The hashtag was overwhelmed by internet users posting pictures of cats to drown out serious discussion and prevent terrorists from gaining any useful information.