Hi everybody I'm pretty new to Doctor Who and Torchwood but I moving through the episodes. I just started this year and I'm about to watch the Specials at the end of season 4 of Doctor who and I just finished Torchwood : Children of Earth.
Here's a recent doctorwhotv "article" on Children of Earth http://www.doctorwhotv.co.uk/torchwood-children-of-earth-in-perspective-62098.htm
As for the discussion already going on here, I believe them controlling of the kids was the same as a virus only the 456 could control. How do you think the world would respond if suddenly Aliens took over the minds of every child? People respond differently when children are involved. These Aliens demonstrated they could control the kids and gave the countries very little time to decide. The thing is, within the episode we don't know what the other countries know about the 456 or Aliens in general? We get a taste only from the lying greedy Governments in relationship to each other.
I do find it interesting in connection to what happened in the Doctor's who Year that never was-How much do the other countries know of it? I mean that all started because of a British Prime minister...