Sitting down at the table, having your picture taken with a tyrant such as Raul Castro, for example, lends the status of the office and the status of our country to him. He gains a lot from it by saying, look at me, I’m now recognized by the President of the United States.
This, of course, is in response to Barack Obama's continued statements that he would “never fear to negotiate” with anyone. Now, I'm not entirely convinced that Obama is correct on this. I would set down some pretty stringent conditions to meet with various dictators. My issue is what is the difference between the tyrant in Cuba and the tyrant in say... Saudi Arabia? This stark, black/white split between “with us” and “against us” doesn't serve us well, and it makes US foreign policy even more incoherent than usual.
The Saudis, Uzbekistan (they like to boil people alive) and Pakistan are the good guys. Iran and North Korea are the surviving members of the Axis of Evil. I dare you to figure it out.