Nuclear Plants

Does some nuclear waste have to be stored for 100's of years?
Have some states banned nuclear plants?
Which are more expensive to build, nuclear or coal plants?

Spent nuclear fuel rods from nuclear plants remain highly radioactive and need to be stored until they are safe. Some elements can remain radioactive for thousands of years. Currently, used nuclear fuel is stored at the nuclear plant facilities as an interim solution to disposal.

Several U.S. states have a ban on (new) nuclear plants, including California, Connecticut, Hawaii, Kentucky, Maine, Massachusetts, Minnesota, Oregon, Wisconsin and West Virginia.

It typically costs more to build a nuclear plant than a coal plant.