ISON was already breaking up and disintegrating well before it reached perihelion and it was estimated to only be about a half mile in diameter at most, a rather small comet. To say as your YouTube source claims that there are mile wide chunks about to hit the Earth is ridiculous. You simply dont and cant get mile wide or bigger chunks from a comet that was less than a half mile wide in diameter to begin with.
And look at this, the Earth is simply not going to intersect with any outbound ISON comet debris:

http://astrobob.areavoices.com/2013/12/10/comet-ison-update-dec-10-meteor-shower-in-the-offing/
Ive been asked whether Earth will get dusted by ISONs dusty cloud of debris as it passes our planet on the outbound leg of its journey. The answer is almost certainly no. There are several reasons why. First, the debris passes far above the Earths orbit even at its closest approach on Dec. 26, when whats left of the comet will be nearly directly above our planet and 40 million miles away. Thats farther than Venus and even farther than Mars during its closest approaches. Ive read catastrophic talk ISON raining hell fire on Earth. Not gonna happen. Not even meteor fire at least from the breakup.
Second, while the debris cloud will certainly expand and enlarge, the comet leftovers will continue to travel along the same general path as ISON. They wont suddenly veer off and make a beeline for Earth. They carry much of the original momentum and direction as the comet that created them.
And
Meteor researcher Paul Wiegert of the University of Western Ontario has been using a computer to model the trajectory of dust ejected by Comet ISON and predicts that starting about January 12 and continuing for several evenings, we stand a chance of a meteor shower from material released well before perihelion.
The dust particles will strike Earths atmosphere at around 125,000 mph (56 km/sec), but because theyll be so tiny, its unlikely well actually see anything.
To say that these dust particles from ISON pose any danger to Earth or will even be observable is ridiculous. We might at the very best observe a few brief streaks of light in the sky as some of the larger particles (yet very tiny specs) when they hit the high atmosphere and quickly burn up but they are not likely to be anything compared to other meteor showers like the Geminids or any of the other yearly meteor showers. FYI, the fire ball seen over Arizona had nothing whatsoever to do with ISON but was most likely part of the Geminid meteor shower which are known for occasionally producing harmless but yet very bright fire balls.
The International Space Station and other Earth orbiting objects like satellites are more in danger from space debris of the man made kind than they are from specks of specks of dust left over from ISON.
And your source for these YouTube videos you keep posting here, Jessie Waltman; he is a complete nut job with no understanding or background in astronomy and as someone on another one of your ISON threads correctly called it: Disaster Porn
There seems to me to be a subset of End Times and prophesy and conspiracy theorists nuts who keep claiming that the End Of The World Is Nigh. They keep predicting mass destruction and horrific mass deaths either from comets or asteroids, rogue planets that do not exist, or earth quakes or volcanoes, or a combination of every natural disaster possible or just Gods plain wrath, and when it doesnt happen as predicted, they just move on to the next one. And this is not just limited to the religious conspiracy nuts; the Gia worshiping environmental AGW (anthropogenic global warming) nuts seem to also revel in the idea of eventual demise of mankind.
Remember when Harold Camping famously or more precisely infamously predicted that the end of the world and the rapture would occur on May 21, 2011 but when that didnt happen he just moved the date to October 21, 2011 and when that didnt happen he pretty much retired and disappeared from public view? Unfortunately a few of his true believers sold everything they owned in order to buy billboards and quit their jobs in order to stand on street corners proclaiming the end of the world. Well Stupid is as stupid does and I have a hard time feeling sorry for such gullible and uneducated fools.
Disaster Porn is a very good name for this sort of thing. There are some people who actually seem to wish for and actually look forward and get their jollies off from imaging mass horrific and painful deaths of millions of people and the mass destruction of the Earth during their life time because they think they will somehow be immune or saved from it and will somehow feel fulfilled and justified in seeing the horrific deaths of others who dont believe exactly as they do. And when it doesnt happen, rather than being relieved, they seem rather disappointed and then they just move on to the next weird and scientifically unsound disaster porn theory.
You pulled another thread . because you dont believe the footage from a government satellite?
No. That thread was pulled because it was Idiocy and rightly so.