The article says that Iran could produced enriched uranium on this timescale. We already knew this, because the final stages of enrichment are relatively easy. However, the article says that Iran would not be able to build a bomb on such short notice. A miniaturized, deliverable warhead is even harder.
U.S. to deliver 8 advanced F-16s to Egypt on July 30-31, U.S. embassy in Cairo says (Reuters)
from the article: U.S. think tank: Iran could produce a nuclear warhead within 2-4 months