1. The system protects only few vital area. To totally protect the south, you need more than 10 system and only 2 are deployed. The system do not protect open areas outside the cities. 2. US sponsored the program but don't own it. US has no liability, so cool down.
Army: Blast in Korean DMZ wounds two South Korean soldiers (Reuters)
from the article: Iron Dome makes world history intercepting nine Gaza rockets