No. You own your data stored at Facebook. Facebook just have license to use "as they wish" while respecting your privacy settings (i.e. uploading facebook.tax.x

No. You own your data stored at Facebook. Facebook just have license to use "as they wish" while respecting your privacy settings (i.e. uploading facebook.tax.xz is definitely not according to privacy settings of most people). At least that written and TOS or so.