Facebook’s war on Snapchat is entering a new stage of hostilities. Starting today, Facebook will expand testing of a new camera in its main app that relies on the very same video and photo filters users of Snapchat enjoy. This includes masks that map to your face and full-frame effects that overlay over the scene. It will also let you either post that content or send it as a direct message to any number of people on your friends list. And in one more Snapchat-like flourish, this photo or video will only remain visible so long as you and your friend talk about it. If you fail to start a conversation in the first 24 hours after it’s sent, the content will disappear.

To try and get as many people to use this as possible, Facebook plans to…

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