The article also says they don't need it because they'd be placed in a destructive orbit anyway. So which is it? Probably both. There's nothing about the design that requires it to be in a certain orbit. Some may be placed in LEO. Others in polar orbit... others, maybe into a non-destructive orbit.
Where's the backup if the primary propulsion system fails? Oh. Right... there isn't one. One loose wire and it'll be up there for centuries, instead of years.
I wish I had mod points. The McCain Torture Ban, as written, is an absolute ban on torture. The "legalization" you refer to comes from a "signing statement" by President Bush. A signing statement is when the President signs a bill into law and says "Part X of the law is unclear, so I'm going to interpret it to mean Y." In this case, President Bush said "The part of the Torture Ban about whether torture is banned is unclear, so I'm going to interpret it to mean 'Torture is NOT banned.'" John McCain waved the bullshit flag. A day or so after the signing statement was made public, McCain was asked about it and said, "If Bush didn't like the bill, he should have vetoed it" and then promised that if he was elected, he wouldn't make any signing statements at all. John McCain is NOT in favor of torture.
John McCain, you were neck deep in what was up till now the biggest banking scandal and bailout in US history. Does this experience give you any special insight into the current credit crisis?
Yeah, he's got special insight into banking scandals. That's why he cosponsored a bill to regulate Fannie Mae and Freddy Mac far more strictly in 2005. If the Democrats hadn't blocked that bill, the companies wouldn't have melted down. Of course, if the Democrats hadn't blocked that bill, they wouldn't have been able to give so much to Democrats in campaign contributions.
Numeric stability is probably not all that important when you're guessing.