No, but handcuffs probably will be needed.
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So, the goal here is to force them to take the 5th? Does that help or hurt chances of conviction if (hopefully when) the are indicted. I think it would help Trump politically if they take the 5th.
This is a ‘go through the motions’ or pretend, that congress is doing something about the corruption that occurred during the last 4 years in the Obama administration. But, surely, there was corruption on the part of the democrats that perpetrated the sham investigations and made things worse. Why not put them under investigation too? Democrats knew that it was all a sham, and they put the country and Trump through the biggest hoax in American history.
Flynn should file lawsuits against each and every FBI agent and Obama employee that put him through 4 years of torture. Trump needs to do the same, especially against Pelosi and Schumer and Schiff and Nadler and all of the other democrat stooges that went along with what they knew to be a complete fallacy.