This question as is (October 2, 2015, 15:07 Athens time) should be closed and I voted to that effect. I provide an answer in order to show why it should be closed.
As any natural or legal entity, the "Fed" engages in strategic behavior. Strategic behavior is not a priori constrained by moral considerations (and this is why Game Theory has come under fire for moral reasons in a normative approach). Under strategic behavior anything goes at first, and then the actual course of action is decided based on whatever constraint the decision maker feels it has to take into account, for whatever reasons.
Therefore "manipulation of facts" of any short and to any degree may in principle be employed in order for the decision maker to (attempt to) reach its goals.
So the question as is has the above trivial and uninformative answer. It could be improved by asking, for example:
"Has there been any study that tried to assess whether "fact
manipulation" was critical in achieving the goals of the Fed?"
"Are there any econometric papers studying the correlation between macroeconomic outcomes and some index of "fact manipulation"?
These kinds of questions would be manageable and in principle interesting and answerable, but I personally am not aware of any such study.