The Obama administration has engaged with Iran, Russia, Burma, Sudan, North Korea.
The site had engaged with a "passionate, loyal and vocal community many, many thousands of book-lovers strong," he added.
In a statement on Friday, Kris Fortner, a McKesson spokesman, said: "We appreciate the support shown by our shareholders and the thoughtful way many have engaged with us as they carefully considered the proposals presented.
Despite the broad intentions of the national plan, some are judging its success by how many children have engaged with an instrument, for whatever duration, at some stage in their primary education.
He said: "We are longstanding shareholders in the company and have engaged with senior executives and non-executives over many years, sadly to little effect.
The manner in which Butler argues, and the details of the particular arguments, are indeed what many philosophers who have engaged with him have found most inspiring, even when they have rejected his conclusions whole-heartedly.
All families were contacted regardless of how many times they had engaged with the programme.
But few of my many critics, including Paul Krugman on his blog and many commenters on DealBook, seem to have engaged with my main point.
Most simply referred to the decision-makers behind the plans as an anonymous 'them.' In contrast, many of the 'campaigners against change' had engaged with the commissioners directly.
