The camera scans the holy terrain, the domed mosques and people strolling along a tree-shaded plaza. It zooms in on a group of foreigners who turn out, after a few mouse clicks, to be visiting US security chiefs on a guided tour of the hilltop revered by both Muslims and Jews.
In an Israeli police station at the Jaffa Gate into the Old City, in front of TV screens picking up images from 280 cameras scattered across the densely populated heart of Jerusalem, a 24-hour watch goes on for stirrings of apocalypse.
Police have stepped up surveillance in recent weeks, amid fears that as the Palestinian-Israeli conflict nears a critical juncture, the sacred hilltop with its two mosques, known to Jews as the Temple Mount, will become the ultimate flash point for disaster.
Israel's security chiefs are wrestling with two nightmare scenarios they say are increasingly realistic -- an attack on the mosques by Jewish extremists trying to stop Israel's planned withdrawal from the Gaza Strip, and a collapse of parts of the structurally shaky mosque compound onto thousands of Muslim worshippers.
Muslims would almost certainly blame either catastrophe on the Israeli government and transform its conflict with the Arabs into a full-blown religious war.
In recent weeks, police have increased patrols at the Al Aqsa and Dome of the Rock mosques and undercover agents are shadowing well-known militants.
However, security officials say a lone assailant not on anyone's watch list -- someone, perhaps, like the Jewish nationalist who assassinated Prime Minister Yitzhak Rabin in 1995 -- could easily slip through their net. One of their greatest fears is a shoulder-held missile fired from one of the alleys near the holy places.
Lately, with hard-liners increasingly desperate to stop Prime Minister Ariel Sharon's withdrawal plan, the warnings have reached an unusually high pitch.
Israel is sitting on a "keg of nitroglycerin," said Carmi Gillon, a former chief of Shin Bet, the secret service. The agency has held top-level meetings on what it describes as a threat to Israel's existence. Its director, Avi Dichter, who rarely speaks in public, has said everyone should be losing sleep.



