This is a well-known video by David Chandler, prolific video maker for AE911truth:
He says that the collapse front was preceded by a wave of explosions which cut the support columns, so that when the falling mass reached each story it encountered no resistance. Hence the collapse took place at or near "free fall". In so far as there is a truther theory of controlled demolition, this is it.
How many separate explosive charges would have been required to do this? It's easy to calculate a ball-park figure without knowing anything about demolition technology, and as this is central to their claims I suppose some truthers must have done it. But no figure is mentioned in the video or anywhere in the truther opus that I know of. Can you see why they prefer to avoid it?
Data:
47 core columns
240 perimeter columns
70-80 stories up to the impact level.
How Israel Caught Russian Hackers Scouring the World for U.S.*Secrets Posted on October 10, 2017 by neuzd It was a case of spies watching spies watching spies: Israeli intelligence officers looked on in real time as Russian government hackers searched computers around the world for the code names of American intelligence programs.
Hacking and national security experts say that U.S. voting machines are vulnerable and could allow Russia to access to them, according to a new report out of DEFCON, one of the world's longest-running hacker conferences. The report concludes that it is incredibly easy to hack U.S. voting machines, and the system is not nearly as safe as it's portrayed by election officials because many voting machines contain foreign-manufactured internal parts that*may be susceptible to tampering. Hackers also do not need advanced knowledge of voting machines to hack them -- it would take only a few minutes or hours for someone with the technical knowledge to infiltrate the machines. At the Voting Village conference in July, DEFCON set up a hacking village to draw attention to cyber vulnerabilities in U.S. election infrastructure. It invited participants to hack 25 pieces of election equipment including voting machines and electronic poll books, and produced a report afterwards. The report, which was released Tuesday at an Atlantic Council event, showcased DEFCON's findings. At the Voting Village convention, one IT professor*broke into a voting machine within an hour and a half. A Danish democracy-tech researcher remotely hacked the AVS WinVote system within minutes.