The problem: deploying Iron Dome as an anti-Kassam system involves using extremely expensive missiles to shoot down extremely cheap ones. If they choose to rebel again, the Helots could simply bankrupt Israel by repeatedly triggering the system. The solution. Have the US pay for the rockets.
Law expanding definition of terrorist activity passes first Knesset reading (Haaretz)
from the article: U.S. official: More U.S. aid will help Israel make 'tough' decisions