`  ==Potential Drawbacks==  Could someone please remove this column from the list?  The ``potential drawbacks`` of emerging technology should be addressed in the articles on those technologies themselves.  The list feels cluttered with long and unnecessary speculations on possible negative consequences of these technologies.  The space available on this list is simply not sufficient to address the ``potential drawbacks`` in detail worth devoting a column to.      Before the addition of additional columns it would be good to debate the merit of such columns and their purpose with respect to the objectives of this list.   `