Salt is Salt...right?

I asked Cooks Illustrated what the differences are between table salt, sea salt and kosher salt.  This is what they said...

What distinguishes one salt from another is texture, shape, and mineral content. Table salt usually includes anti-caking agents that help it pour smoothly. Kosher salt has larger grains and does not contain any additives, and sea salt is rich in minerals. 

We use kosher for seasoning meat and table for most other applications. Sea salt, much more expensive, is not worth using unless you want to add it as a "finishing salt" to add a delicate crunch. 

That said, use Kosher salt for salting meats and just about everything unless your recipe calls for a particular measurement of salt.  In that case, use table salt.