Speaking at the US Congress Wednesday, Defense Minister Moshe Ya'alon urged the US to stay wary of Iranian actions in Syria and across the region."We are very worried about Iran's presence in Syria," Ya'alon said."Iran's Quds Force is currently the only source actively working in Syria to attack us, trying to smuggle weapons and run messengers," he continued. In the past, a number of attacks across the Syrian border have been attributed to Hezbollah."The Iranian regime is perceived as one of the key sources of stability for the Middle East, but we would argue that it is the heart of the problem. This regime generates terrorism and undermines many of the regimes in the Middle East, and this is not good news for the region, not only Israel. The Iranian terror network is active across the world, including the US."