I'm sceptical. This sounds like a James Bond type machine: a size that will fit in a backpack, yet somehow putting out all kinds of energy. That alone is suspicious.
The second thing that makes me sceptical is that it came from ODNI. That's Tulsi Gabbard, who has zero qualms about bald faced lying. The entire Trump administration has little care for the truth, Gabbard is probably worse. There are also rumors that Gabbard is on the outs, so she may be doing a big, splashy thing to regain status in the Trump inner circle.
https://www.dni.gov/files/ODNI/documents/assessments/NIC-Unc...