President Barack Obama has done what's been needed for decades — changing our policies toward Cuba ("Cuba policy draws critics, new battles on Capitol Hill," Dec. 17). Now, what about North Korea? Burying your head in sand over "undemocratic regimes" is dangerous. It's time for us to comprehend both North Korea and Cuba are out there.

According to U.S. government sources, "Investigators have determined that North Korea was behind the attack on Sony computers." There you have it! I'm wary of this indictment. It's hard to believe a nation as isolated and "backward" as North Korea had the capability. Apparently, threats were so serious that "The Interview" won't be released as planned.

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I'd never given North Korean Kim Jong-un much thought, but it seems he didn't appreciate a comedy about his assassination. I'd like to hear from the National Security Agency. So far, that agency has been missing in action on the matter. If North Korea has the ability to wage cyber war on an American company, we should be alarmed. Perhaps it's time to open an embassy in Pyongyang.

I look forward to a Cuban vacation. We've pretended for too long that nation, so close to Florida, doesn't exist. Sorry if the folks in Miami's "Little Havana" can't agree, but President Obama did the right thing. North Korea may be another problem, but if the cyber-attacks against Sony were state sponsored, it's time to understand they, too, are a reality.

Rosalind Heid, Baltimore

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