Haaretz Service and News Agencies: 'Iran behind Hezbollah bid to strike Egypt targets'
Talkback
Title:To Net re "49?" Police works in the following way: They catch ONE
Name:Vittorio
City: State:
.... or TWO. Then suspect reveal other names. They catch others and verify their evidence.
When no new names cannot be found and when evidence is confirmed, they make a conclusion about the group.

- You ask also "Why would they need 49 people to do the job of just a few"?
It would not be a job of few. There would be a necessity to coordinate, to cover, to escape, to make contacts, to distract attention.

Actually, you could ask Iranian organizer. They know the plot.