Which countries may be devloping nuclear weapons today?

North Korea, Iran, and possibly Syria. North Korea has confirmed it has the capabilities to create nuclear weapons and has proven it. However, they have not perfected the technology behind delivering the missile effectively to anywhere outside the Korean Peninsula. Iran claims its current nuclear program is for peaceful purposes. But the claim is practically ludicrous with the evidence behind the type of reactors being built, the fissile material being generated, and the statements it has made about Israel. Syria is another story because it has attempted to create nuclear reactors as well with evidence that it received help from North Korea. However, Israel destroyed the site before it could be operational.