a lane from a DNA electrophoresis or printer calibration?

The images are from Trump's May 29 speech, just as he was leaving the podium.

What DNA, whose DNA, why the DNA?

H7 vaccine? HOT gene splicing? repairing damage?

CEMEX facility in Tallahassee seems to be hiding containers in a nearby wooded area. …Funny how these CEMEX facilities are frequently near (a) small grocer/food-distributor (b) mini-storage, (c) electrical supply (d) trailer repair/customization…