What is the fine-grained topic of the following text: As an 'independent' network of Alpha Gamma Delta sisters it saddens me that the blog network has become a 'news source' for when tragedy strikes our sisters, but I think it's important that we know about such events, as these woman are our sisters no matter that we never met them, or that they are miles away, and because of that they are so deserving of our thoughts and prayers. Only return the topic.
Alpha Gamma Delta Sisters Network Discussing Tragedies