The Board should be investigating two things: if Jensen knowingly lied to the Board and if he corruptly colluded to suppress any government’s investigation into Alice Huang.
If the answer to both is no, he is a man who got duped and compromised America and Taiwan’s national security. Still, perhaps, a great founder and CEO. Send him to marriage counseling and have his security detail report to the Board.
If the answer to either is yes, he should resign, personally indemnify the company against shareholder lawsuits, and switch focus to defending himself against criminal charges (and working on his marriage or divorce, as it might be).