north america correspondent david willis told me more. this was a two page diplomatic mode, delivered to the us state department from the russian embassy in washington, dc. it basically accuses the us and the westng the conflict in ukraine and threatens what it calls "unpredictable consequences" if those shipments of military assistance continue. the timing of this is potentially very significant because this note was sent on tuesday evening of last week, just as word was beginning to leak out of another package of us military aid to ukraine, $800 million worth, which for the first time included some heavy and sophisticated weapons, including howitzers, long—range artillery, and those sorts of things, designed to match russian capabilities on the ground in eastern ukraine, around the disputed donbas region. it does not appear that this is going to provoke any sort of change in strategy on the part of the us and indeed,, it does not seem to have concerned people at the white house very much. there was a tweet from the state department spokeswoman, who said nothing will dissuade us from the strategy that we have embarked upon. and, indeed, senior us officials were saying a short while ago that th