Why is the trial a problem?

Josh Marshall counters:

[..] most of the criticism comes under three distinct but related arguments:

1. Civilian trials give the defendants too many rights and protections and thus create too big a risk they'll get acquitted and set free.
2. Holding the prisoners and trial in New York City puts the city's civilian population at unnecessary risk of new terror attacks.
3. Holding public, civilian trials will give the defendants an opportunity to mock the victims, have a platform to issue propaganda or gain public sympathy.

The first two arguments strike me as understandable but basically wrong on the facts. The third I find difficult in some ways even to understand and seems grounded in bad political values or even ideological cowardice.

(continued)