No. They will throw in mutagens and carcinogens
that DHS will not detect.
The people in charge are idiots to leave this open
for contamination OVER AND OVER by foreign nationals,
and to advertise that attacking has no risk
(and EVEN if caught, Holder and the might of the
criminal DO”J” will defend any terrorist, just
like all the past murderers and terrorists).
How about some nasty virus created in a lab?
I wonder if water testing looks for unknown viruses or the like? Watch for an epidemic of MERS like symptoms shortly.