Apparently, one of the people set to testify in the case, Ibrahim's oldest daughter, Raihan Mustafa Kamal (an American citizen, born in the US), was blocked from boarding her flight to the US to appear at the trial, and told that she was on the no fly list as well. Kamal, a lawyer, was an eye witness to her mother being blocked from boarding her flight. The US knew that Kamal was set to testify and from all indications, in a move that appears extremely petty, appears to have purposely blocked her from flying to the US. Kamal was directly told by the airline that DHS had ordered them not to let Kamal to board. The airline even gave her a phone number for a Customs and Border Patrol office in Miami, telling her to call that concerning her not being able to board.
Judge William Alsup, who is known for his rather no-nonsense approach in court (and his willingness to dig very deep into understanding the issues), quickly noted that this apparent blocking of Kamal was ridiculous, and demanded that the government explain what happened. When they insisted they knew nothing about it, Alsup wasn't satisfied. Nor was he satisfied with the story they eventually came back with.