The number of nuclear bombs being driven to and from the Clyde rose more than fivefold last year to help modernise Trident.
An SNP MP who criticised UK arms sales to Saudi Arabia has received more than £400 worth of hospitality from a defence lobby group.
The nuclear bomb convoys that shuttle across the country have reported 43 safety incidents in the last three years, according to the Ministry of Defence.
The Infrastructure and Projects Authority told the Cabinet Office that £31bn programme for new nuclear submarines faces “major risks”.
A “restricted” Nato air exercise manual with codewords, ciphers and co-ordinates is mistakenly circulated to fishing and ferry operators.
Trident submariners were guilty of a “prolonged and repeated failure” to understand and control reactor risks at the Faslane nuclear base on the Clyde.
Safety fears have been raised about planes carrying nuclear weapons ingredients such as tritium, plutonium and enriched uranium over the UK.