Well I mean sources which are either primary (i.e. tweets, blog post which are from eye witnesses, people involved) and also secondary sources such as WashPo wh

Well I mean sources which are either primary (i.e. tweets, blog post which are from eye witnesses, people involved) and also secondary sources such as WashPo when WashPo acts as the sole conduit for a primary source (i.e. WashPo publishes information they got directly from a government insider).