I'm pretty sure you can. Posting it as officially associated with the website might cause problems, but as a simple reference pic posted on a forum board is legal.
BTW, SPI is pronounced "spy"? I always pronounced it "ess-pee-eye" Makes tons more sence as "spy," though, what with the camaflage, and the fact that "Semi-powered Infiltration" hardly makes any sense, so it was obviously used for the accronem (sp?).
Subject: REGARDING THE ANALYSIS OF THE BOOK 'THE GHOSTS OF ONYX'
Classification:EYES ONLY TOP SECRET (SECTION III X-RAY DIRECTIVE)
/file extraction-reconstitution complete/
excellent book. just finished. found an excellent quote. my favorite quote in the whole book.
"This is a prototype Nova bomb,nine fusion warheads encased in lithium triteride armor. When detonated it compresses its fusionable material to neutron-star density, boosting the thermonuclear yield a hundredfold. I am Vice Admiral Danforth Whitcomb,temporarily in command of the UNSC military base on Reach. To the Covenant uglies that might be listening, you have a few seconds to pray to your dammed heathen gods. You all have a nice day in hell."