From the article:
The Israeli government was shocked by what Mossad found on Othman’s laptop. A trove of downloaded photos detailed a box-like building being constructed on the Euphrates River in eastern Syria. Israeli and American spy satellites had detected the mysterious structure during earlier scans of Syria, but derived no special significance to it. Othman’s photos, however, revealed the building, located near a Syrian trading town called Al Kibar, to be a virtual replica of North Korea’s Yongbyon nuclear reactor, a plutonium-producing facility that the U.S. viewed as a virtual bomb-making factory.
This is worth noting... what this is about, Syria was building a nuclear plant and we didn't know it nor did the Israelis. That reactor was eventually bombed. It was only found out largely by luck.