Is North Korea economy feeling the US heat?

SEOUL, South Korea - The blacklisted 1970s-era North Korean oil tanker floated in waters a couple of hundred miles south of Shanghai, tethered to a ship half its size by a hose, as if hooked up to an intravenous line.

The offshore coupling, spotted by the Japanese navy last month, was the latest evidence that North Korea may be succeeding in skirting international sanctions designed to pressure the isolated regime into giving up its nuclear weapons. The ship was likely receiving a transfusion of oil, a primary target of ongoing international sanctions on North Korea.

When North Korea's Kim Jong Un met with President Donald Trump last June, Trump claimed it was his "maximum pressure" campaign centered around sanctions that forced Kim to the table for the first-ever summit between U.S. and North Korean leaders.

But analysts say North Korea continues to find ways to adapt. Illegal smuggling operations