Even as computerised weapons systems and wired infantry have blown away some of the fog of war from the battlefield, they have covered cyberspace in a thick, menacing blanket of uncertainty.

ECONOMIST: The threat from the internet

The mortar has changed little since World War II and remains one of the simplest weapons to operate, which is why it is found at the lowest level of infantry units, said Joseph Trevithick, a mortar expert with Global Security.org.

NPR: Mortar Explosion In Nev. Kills 7 NC Unit Marines