But at least you have a few years to either get your avatar's affairs in order or haul ass out of there. The '24' timeline at this point is situated in the year 2012 (based on the timestamp on the computers and cell phones). This date isn't really arbitrary, as it can be approximated by the succession of Presidents and the number of years each served from their terms of office.
And it's because of all these Commanders-in-Chief that the TV dimension of '24' is really of no big whoop for Toobworld. By 2012, the POTUS in Earth Prime-Time will be whoever is the POTUS here on Earth Prime. So unlike the future events of some other shows*, a section of L.A. will not be destroyed by a small nuclear device in the main Toobworld.
At least, not under the watch of Wayne Palmer.
However, Earth Prime-Time has already suffered devastating destruction in a small section of Los Angeles, and perhaps this nuclear explosion was Earth Prime-Time/24's chance to realign itself in some way with the general historical outline laid down in the main TV dimension.
Back in 1964, an entire section of L.A. vanished, leaving behind a gaping crater. At least six blocks of a suburban area had been teleported away by the Luminoids, an alien humanoid race from the planet Luminos.
The Luminoids wanted to conduct "A Feasibility Study" to see if the human race could adapt to their planet's atmosphere and withstand the mutations that afflicted the Luminoid people.
Instead, the humans practically committed suicide by accepting the deadly mutagens rather than be subjected to slavery. ('The Outer Limits')
The Luminoids may be related, but are not the same as, the Luminans of Lumina. One of these aliens, who took the Terran name of Casey Rogers, landed in 'Port Charles', NY, in 1990 in order to search out the shards of a special crystal from his homeworld. Once reunited, the crystal caused a massive blackout throughout the area. ('General Hospital')
(My guess is that Luminos and Lumina were twin planets sharing the same orbit in much the same way as Earth once shared its orbit with the planet Mondas. At the very least they shared the same solar system.)
So the Luminoid abduction of that section of L.A. in 'The Outer Limits' may be the dimensional equivalent to the "Ground Zero" site from the bomb blast in '24'. And only the dimensional vortex - and over forty years - separate the two.
At any rate, life has gone on in the main Toobworld since that massive alien abduction, and the problems facing Agent Bauer in that dimension don't mean Jack to Earth Prime-Time.
But here's one last thought - Has it ever been stated as to what year it is in the TV show 'Jericho'? Because if this pattern of bombing major cities continues, '24' and 'Jericho' may as well be sharing the same dimension!
Just sayin', is all.....
*For example, the events depicted in 'Land Of The Giants' took place in 1986 and those of 'Lost In Space' took place in 1997. Yet both shows aired in the mid-60s. Both have already occurred in Earth Prime-Time's history.