'Cold war-era weapon': $100bn US plan to build new nuclear missile sparks concern

Scientists say the GBSD project is outdated and the result of lobbying rather than a clear sense of what it will achieve

The US is building a new $100bn nuclear missile based on a set of flawed and outdated assumptions, a new report by the Federation of American Scientists (FAS) will say.

The report, due to be published next week, will argue the planned ground-based strategic deterrent (GBSD) is being driven by intense industry lobbying and politicians from states that will benefit most from it economically, rather than a clear assessment of the purpose of the new intercontinental ballistic missile (ICBM).