50GB per 24Hrs is only about 5Mb/s 24/7 - Just hook up a WLAN to a dish - easy - plenty of spare b/w too. :)

I think that the LaGrangian Point is almost a million miles from Earth. From that distance the Earth will not quite cover the Sun. But I could be wrong.

And the other thing about the elaboration is that rockets=military (no matter if they're launch by NASA, Virgin Galactic or anybody else) so if the military had told them to say silent due to the Soviet threat they had_to_be_silent and that's it.

I have to say this, But in this case You really don't know what You're talking about, As in the USA things are run differently here than in the rest of the world. Not all Rockets are owned by the Military or have to have Military clearance, As the Military doesn't make the rules here, Civilians do, As in We the People, And here's another example, The Head of the Military here(The Joint Chiefs of Staff in the Pentagon) takes orders from a Civilian, I think You've heard of the President of the United States of America.
As NASA is a Civilian Agency of the US Government and has always been independent of the US Military and all the Rockets are made for NASA and not for the Military.