In the immediate aftermath of Clinton's exit, reporters tweeted their frustration at not knowing what was going on — and being prevented from finding out.

Hillary Clinton left viewing area for 9/11 ceremony about 30 mins ago. No info about her current whereabouts. — Lisa Lerer (@llerer) September 11, 2016

@HillaryClinton did leave the 9/11 ceremony viewing area 45+ m ago. Her poolers not taken w her and we cannot verify status or location. — Margaret Talev (@margarettalev) September 11, 2016

From NBC Pool Report: "We are told by the campaign that we are no longer allowed to shoot anything from the ceremony." — toddstarnes (@toddstarnes) September 11, 2016

Why it's important to have a fully protective pool for a nominee, something her campaign hasn't made possible https://t.co/AzjcxZM8WC — Jennifer Epstein (@jeneps) September 11, 2016

First information from the campaign on Clinton's whereabouts came around 11:00 am to the press pool https://t.co/XuPLc68I8G — Abby D. Phillip (@abbydphillip) September 11, 2016

Clinton is heading home to Chappaqua, per the campaign. But the press pool is not being permitted to travel with her. — Abby D. Phillip (@abbydphillip) September 11, 2016

https://www.washingtonpost.com/news/the-fix/wp/2016/09/11/the-clinton-campaigns-bad-damage-control-just-made-the-health-story-even-worse/