Is JTF for or against this?
Against.
If the Israeli Air Force would destroy the Iranian nuclear bomb-making program, Israel wouldn't need the Arrow system. The Arrow system is NOT the answer to the Islamic nuclear threat. The only REAL answer is to militarily eliminate the Iranian nuclear threat.
When Israel receives U.S. foreign aid of any type, it makes Israel much less likely to act on her own when her survival is in danger. Israel is afraid of jeopardizing the foreign aid, and so she depends upon America and other countries to protect her, which is true suicidal insanity.
To let the Iranians develop nuclear bombs, and then hope that the Arrow system can prevent the bombs from landing in Israel is lunacy. Iran must NOT be allowed to develop nuclear bombs! Period.