I don't think disgraceful is sufficient.
As I said on another thread, one of the problems is the lack of experience of Assistant US Attorneys. A few come from the state system, but so many are, in effect, political appointees, from civil firms (and therefore have likely never tried a jury trial), or are lawyers who have no experience outside of clerking for a US District Judge.
There are ways to investigate possible witness tampering, if suspected, but one must be careful not to invade the attorney-client relationship. And, if one records the defense attorney in the course of an investigation, and it doesn't result in the attorney assuming the "nose down and fanny up" position while being handcuffed, one must disclose to him the fact that he was taped.
It boggles my mind that these prosecutors could be so ignorant or so sleezy (or both).
Of course this is SOUTH Florida.
Bob