[Yosemitest]

We shall see.
In the breakup, as those large pieces of a well over 5 miles in diameter comet come apart, trajectories change.
The gravitational pull of Venus, our moon, and our Earth, all tug on those pieces and affect their destination.
Think you safe?
Be prepared.
What is the impact energy of a piece traveling well over 300,000 miles per hour?
They're changing terminology from "Meteorite Shower" to "Meteorite Storm".

[FreedomStar3028]

No, they aren’t over 5 miles in diameter. How does a 1.5 km diameter comet, turn into pieces that are 5 miles in diameter?

The only gravity that matters is when ISON sling-shot around the sun breaking up, the pieces still travel in the same direction ISON was going. Nothing was there to knock it off course.