The US has known of the network of black market nuclear proliferation branching out from Pakistan for at least seven years, according to an ABC News report. US, UK and UN investigators found that a company in Pakistan was prepared to sell everything needed to make a nuclear bomb — plans, equipment and fuel for $50 million, with no questions asked. US officials said that the key to the black market was a small, family-run company in the Swiss canton of St. Gallen, where Swiss engineers helped design 14 key parts of the centrifuge sent to Libya to produce enriched uranium. —(PTI)