Capitol attack shatters sense of calm, raising fresh questions about security

The alert of another violent attack on the US Capitol grounds sent shockwaves through Washington, DC, Friday -- shattering the sense of relative calm at the start of the holiday weekend and reminding everyone that a nation just beginning to crawl out from under the pandemic's long shadow is also still under threat nearly three months after the January 6 insurrection.

In the weeks since former President Donald Trump left office and President Joe Biden took command, the seat of government had begun to take on a tenor of something akin to a humming efficiency. Covid-19 vaccinations are accelerating at an ever-increasing clip.

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