Well there's 3 markedly different descriptions of the fireworks allegedly belonging to DT in the charging documents, none of which really match the fireworks located in the bag from the landfill, as shown in the photo, so that should be fun to wade through in court. They all seem to still have their contents, except maybe the large tube at the rear.
I don't understand why Phillipos only got charged with lying/withholding evidence and the others got heavier charges, unless he agreed to give info. on the others in return for some leniency. They all allegedly confessed to going to DT's room and taking the bag and laptop and Phillipos may have claimed to have been asleep when the items were subsequently disposed of, but IMO it's hard to believe he would have had no idea that was going to be done. The difference in charges doesn't seem fair to me.
Lying to the FBI is the more serious charge as far as penalty.