NBA Season Suspended on Virus Concerns

The NBA season was suspended after a Utah Jazz player tested positive for COVID-19, marking a significant escalation in the sports world. This follows the decision to hold March Madness without fans. Globally, major leagues are suspending play or limiting fan attendance. In the US, President Trump announced a 30-day travel ban from Europe, a major step compared to post-9/11 actions. The US response includes potential stimulus measures, but details are pending.

What was President Trump's major announcement regarding flights from Europe?

What concerns were raised about the details of the travel restrictions announced?