Bush made this claim on 12.4.01 and repeated it on 1.5.02.

This is easily explained as him describing seeing coverage of the initial attack on TV, rather than watching actual video of the plane flying into the building.

Exactly, video tape of the first impact didn't surface until the day after. So his recollection of "watching" it happen on TV is likely a bit of fabulism, akin to Hillary arriving in Bosnia under sniper fire. I mean, what's the Troofer explanation? That he had a private CCTV aimed at the north Tower in anticipation of the attack?

No, this video doesn’t prove Bush Jr. knew in advance the US was under attack. Also the World Trade Center Building #7 didn’t collapse due to a controlled explosion. ————- 47-storey building to collapse on itself at 5:20 p.m., hours after the initial incident that morning. ————- “We have filed a request for correction because the NIST report is wrong,” says Ted Walter, spokesperson for AE911T, which is a group of 3,000 engineers, scientists and architects, including more than a dozen Canadians ones, that paid US$316,000 for the study. ————- “From an engineering perspective it is imperative to understand how and why this building came down under design load conditions,” said Walter.

This merely shows Bush junior up as an idiot, which was largely confirmed by most of his actions. It doesn't indicate complicity.