The scholar, Michael Pillsbury, director for Chinese strategy at the Hudson Institute, a conservative think tank in Washington, said he applied for a visa with the Chinese Embassy in Washington on March 22 but failed to get approval to attend the conference last Sunday, which was organized by a research institute in Beijing.
The United States is lagging behind China in promoting its 5G technologies across the world, with officials only just "waking up" to its potential, a former U.S. national security advisor told CNBC Sunday.
The United States has held the fastest supercomputer title since June 2018, according to the Top500, an independent study of the world's supercomputers. China had held the No. 1 position from November 2013 until June 2018.