While most analysts identify the greatest danger as when Iran can produce nuclear fuel -- the hardest part of the bomb venture , far more difficult than designing a warhead -- others , particularly the Israelis , say the tipping point may come earlier , when Tehran has accumulated a critical mass of atomic knowledge .
Iran /location/location/contains Tehran
Iran /location/country/capital Tehran
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Iran
LOCATION
Tehran
LOCATION
/location/location/contains
Iran
LOCATION
Tehran
LOCATION
/location/country/capital