Why is the 7/7 timeline changing?

[John Doe II]

Everybody is talking of three blasts happening within 50 seconds.
But why was the first timeline of what happened on 7/7 completely different?:


0851 Seven people die in a blast on a train 100 yards from Liverpool Street station
0856 21 people die in a blast on a train between Russell Square and King's Cross stations
0917 Five people die in blast on a train at Edgware Road station
0947 An unknown number die in a blast on a bus at Tavistock Place.
http://news.bbc.co.uk/1/hi/uk/4659331.stm

[bobbieinok]

1. also would VERY MUCH like to know the answer to this question

[zbdent]

2. Didn't fit the need to stroke Bush's ego?

[Endangered Specie]

3. Umm, if I recall there were many conflicting stories

about 9/11, Oklahoma City, and other major events.

All this information is very preliminary, just because it changes doesnt mean much.

[John Doe II]

4. Um

of course if the official story is once fixed nobody will ask anymore how come that four other hijackers were considered having been aboard the planes on 911 and nobody will bother why Robert Bonner lied under oath. Sure this doesn't mean much ....

But without any speculation what that means:
Can anyone explain how three blast that now are conosidered to have happened basically at the same time were on the first day reported as having been in no way simultaneous but 26 minutes apart?