All those people can request this. Not JUST the FBI.
There's a specific allowance in each section to cover what the previous does not.
US target = US person.
1881c - collect intelligence from US targets OUTSIDE the US.
1881d - a FISA judge can combine applications to collect intelligence on a US target both INSIDE and OUTSIDE the US.
1881c says "Other acquisitions targeting United States persons outside the United States"
1881d says "Joint applications and concurrent authorizations"
The first 4 sections are how, the last 3 are where.
Jeff Sessions was recused. Rod Rosenstein HAD to see and sign off on each application as the acting AG.
1804 - Electronic Surveillance
1823 - Physical Searches
1842 - Pen Register and Trap / Trace
1861 - Business Records (to copy/reproduce)
1881b(b) - Collections stateside
1881c(b) - Collections outside the US
1881d(a) - Combine locations
- End (X2)