Thanks for posting the information on the site, it´s good to know about such issues. But, I have an observation regarding the linguistic abuse of simplistic terms like ¨good and bad¨, ¨evil stuff¨ ¨bad guys like...¨ to identify political anti-imperialism and non-capitalist countries; it is just like the kind of language used by George Bush to fuse the irrational sentiments of nationalism and warfare. What would Noam Chomsky say about our astronomer´s use of moral symbolism to educate? ¨Don´t love America that much...¨ Please, America is a continent, not a country. This is an excelent example of an astronomer´s knowledge inbeded with geopolitical charlatanism!!!

Hi Phil, I liked the presentation. I too am a little skeptical of the claims about hydrazine, and agree that the probable reason is to prevent tech. going to people we don't like.

I think the rational objection, the only one I've heard, is that it's yet more development of ASAT weapons. The catastrophic results of a systematic destruction of any country's satellites is a prospect that should make anyone wish to step back from the brink of at least the real-world testing of such devices, if not their development altogether.