"Thanks Ganesh.  Security for social data is an issue across the board. How ever, we have a bunch of regulated industry clients that are using social software now. Its not simple, has plenty of workarounds but is doable. In my mind, the bi-directional thing really needs to be done to get participation right. If your enterprise social web is another tab thats optional or just another resource or consumption mechanism, you may never remember to click on it." - Sameer