Commentary On Saturday, Peoples’ Republic of China planes flew into Taiwan’s airspace. Incursions are a normal occurrence but the most recent one represented an escalation. Typically one or two planes will probe Taiwan’s air defenses but in this case it was reportedly eight bombers and four fighter jets. It appears Beijing is eager to test Joe Biden early. It’s likely China won’t be the only one. The more than 20,000 National Guard troops in Washington to last week protect the new president’s nearly unattended inauguration is evidence that the United States is broken. Observers widely misunderstood the National Guard deployment as a show of force asserting the Biden team’s legitimacy as the elected government of the United States. But the most salient fact of the troop presence is that some who were found to have supported Donald Trump were sent home. And thus the reason for the deployment, which may …