This is all New York Slimes spin-spin-spin. Fitz already told Rove he was NOT a target, according to Rove's attorney.
This is nothing but the NYT trying to work itself up into a state of full engorgement prior to exercising their left (what else) wrists.
He doesn't have to be a target to be charged with perjury. The amazing thing here is the desire to cross reference every word to see if it was previously contradicted for the SOLE purpose of bring a perjury charge. If any of us testified about events over a period of time, our testimony is likely to change unless of course we were lying and we memorized our responses.