There are only four possibilities here:

1) He had access to the classified slides in the course of his work duties

2) He stole the slide print-offs, i.e. dumpster-diving with burn-bags

3) He illicitly used IT access to steal intelligence he did not have a “need to know”

4) He had helper(s).

The fourth option seems unlikely, based on Pentagon whispers. The third possibility cannot be ruled out yet. However, the most likely option is that the low-ranking Teixeira was handling classified slide print-offs while assisting a senior officer with daily intelligence briefings (a position jokingly known as “slide-b*tch” in military intelligence circles, it’s common duty for new junior personnel), and instead of disposing of that paper properly in a burn-bag, Teixeira stuffed the slides in his pants and walked out of the SCIF with them, apparently several times. This theory is bolstered by the crumpled appearance of the papers in the photos Teixeira took of them.

[As always with John, read it all. — Ed]