U.S. President Joe Biden is only three months into his presidency, but his administration has wasted no time in trying to contact North Korea: Over the weekend, NK News confirmed that the Biden administration repeatedly tried to get in touch with North Korea through backchannel methods, but has been ignored since at least mid-February.

Now, experts say that Pyongyang’s unresponsiveness is no surprise, and that Kim Jong Un will likely continue to ignore Biden administration outreach until Washington reveals its much-anticipated North Korea policy review.