Hindsight provides such clarity.

What we cannot foresee looking ahead appears like magic in our rearview mirror. Isn’t that right, Donald J. Trump Jr.?

Don Jr. told Sean Hannity that if he could do things differently when he got that email from a Russian lawyer he likely would take a different path.

He got the email from a lawyer saying that the Russian government had some dirt on Hillary Rodham Clinton, who was running for president of the United States against Donald J. Trump Sr. Don’s brother in law, Jared Kushner and Trump campaign chief Paul Manafort got the email, too. The subject line mentioned “Clinton-Russia: personal and confidential.”

Alarm bells anyone? Apparently not.

Trump got the email, then went to the meeting. He responded “I love it” when he learned that the Russians might have some bad stuff on Clinton.

How might he have handled it? Here’s a suggestion for Don Jr.

He should have called the FBI immediately to inform the agency that a hostile foreign government was offering to help his father win a presidential election. Yeah, he should have ratted out the Russians, who were trying to meddle in our electoral process; they had attacked our sovereignty.

He didn’t do that. Don Jr. has acknowledged that he accepted the invitation with the hope it would prove productive, that it would provide damning information on Hillary Clinton courtesy of the Russian government.

Is it a rookie mistake committed by someone with zero public service experience? Probably yes, but oh, man, it has some serious consequences.

If only he had seen as clearly then as he says he is seeing in hindsight.

Now for the big question, young Donald Jr.: Did you tell your equally inexperienced Dad about this meeting prior to its occurrence?