Many Narakasuras but Lord Krishna is not visible.We are all celebrating Diwali today. The story behind this festival is known to all. Narakasura was a King and he used to imprison the queens of other kingdoms by defeating the Kings there. He used to harass these Queens. His behaviour has become a big threat to the kings and their wives. So all the Kings went to Lord Krishna and asked for his intervention and help. Then Krishna went with his wife Satyabhama for a war with Narakasura and he killed him with a good support from Satyabhama. Then all the queens were released and they went back to their own kingdoms.
These days also we will find many such Narakasarus who are harassing the ladies. But so far nobody is able to stop such activities. I don't know when Krishna will appear and take action on all these modern-day Narakasuras.