[randcraw]

If each email cost a penny to send, 95% of spam would disappear. A little impedence can be a good thing.

There are many good reasons not to make war too easy or efficient. Too often politicians trend toward groupthink and acting en masse, like a faceless feckless mob. Making invasion as easy as sending spam would be very bad.

[caskance]

There's a big difference between "a little impedance" and "risks human life". War waged with robots will still cost money.

If politicians make bad decisions, perhaps you should try fixing that instead of sacrificing the lives of young men for a small chance of making those decisions more painful.