So here comes another talk by the other coordinator of the Journal Club. I will even follow last week's talk and continue talking about fusion. I would especially like to let our graduate students in space physics know that doing fusion could be one possible research opportunity after graduation. In fact, one of our recent graduates has become a staff researcher at Princeton Plasma Physics Laboratory (PPPL), a Department of Energy national lab for fusion research. The plasma physics for magnetic fusion and space physics is actually very similar. Despite tremendous progress in fusion research, there are still many challenging plasma physics problems to be solved. As an example, I will talk about a problem (the kink instability during a disruption event that can cause serious damage in a fusion experiment such as ITER), which I worked on during my recent sabbatical at PPPL.