By 2025,
- Will WMDs be used?
Most likely not. Even countries hostile to the United States know that if they are implicated in helping terrorists release these weapons they basically cease to exist. Terrorists know that this is probably the one act that will turn most of the world, including the Muslim world, against them.
There are always wars.
Yeah, probably a three year economic downturn akin to the late 80s/early 90s recession or the late 70s.
No, unless a large section of the world financial community, the Federal Reserve, the IMF, World Bank, and the President screw up royally which is highly unlikely.
Uh...no. Especially with the growing baby boomer population, anything that delays aging, keeps people alive longer, and can make a huge profit from that will be researched vigorously.
No, when have we ever abandoned a science? When? I can't think of a single example since the Dark Ages where some sort of science has been abandoned. Some interesting projects have been abandoned, the XB-70 Mach 3 strategic bomber anyone?, but that was usually because there was no longer a need for those projects because better technologies became available.
My money would be on no but you can never tell with mother nature.