North Korea calls Biden a "rabid dog"

"Anyone who dare slanders the dignity of the supreme leadership of the DPRK, can never spare the DPRK's merciless punishment whoever and wherever. And he will be made to see even in a grave what horrible consequences will be brought about by his thoughtless utterances.

"Rabid dogs like Baiden [sic] can hurt lots of people if they are allowed to run about. They must be beaten to death with a stick, before it is too late."

The big picture: A South Korean news agency speculated that North Korea's insults toward Biden were actually an appeal to Trump, who often claims to have positive relations with Kim despite little progress in nuclear talks, AP reports.

• The Biden comments "could be seen as an attempt to leave a small window open for dialogue with the current administration," the Washington Post writes.

Go deeper:

• North Korea calls Biden "fool of low IQ" for criticizing Kim Jong-un
• South Korea: U.S. "very actively" coaxing North Korea to return to nuclear talks
• John Bolton suggests Trump's North Korea strategy will never work