With the escalation of this round of Israel-Hamas conflict, the graffiti on the Israel-Palestine separation wall has once again attracted lots of attention and discussion. Israel started to build the concrete wall about two decades ago in the name of security, but can this barrier bring long-term safety to Israel? For Palestinians living along the wall, what's their life like? In this episode of our special series In Focus, CGTN's Huang Yue talks to residents from both Israel and the West Bank to learn more.