"VX is now a dead issue... It is political, really"

Saadi's quote suggests that the concern of VX is no longer appropriate or essential. It implies that the issue has actually been solved or is no longer being talked about. The quote also implies that the issue of VX is more of a political problem than an useful one. This could suggest that the problem of VX has been used as a political tool or bargaining chip, and is no longer necessary. It might likewise indicate that the issue of VX has actually been used to get political take advantage of or to gain an advantage in negotiations. In either case, Saadi's quote recommends that the concern of VX is no longer appropriate or essential, and is now a dead issue.