SECRET GUARD (e) it might be a great help and stimulus, if the U.S. Joint Chiefs of Staff would let it be known how much importance is attached to the present improvement of intelligence co-operation between the U.S. and U.K. Service Departments and how much it is hoped that this improvement will be maintained; (f) it would also be a great help, if U.S. Departments would give us the benefit of the doubt when security regulations conflict with the spirit of the various formal and informal undertakings between our two countries.