Here are the things that TSA might give you trouble over

*1L platypus (must be empty at the checkpoint)
*Ferro rod - Scraper may be confiscated as knife, and ferro rod may/may not make it through as it's a potential fire hazard. One conventional lighter (non-torch) or one book of safety matches is OK. You could probably get waterproof matches through, but the big lifeboat are probably prohibited.
*Chemical body/hand warmers - May be confiscated as potential fire hazard. Probably viewed in same light as sterno cans.
*Hard case with prescription glasses, clip-on sunglasses and mini screwdriver - screwdriver = pointy object. Just because it's allowed in the rules, doesn't mean it'll make it past the checkpoint. The smurfs confiscated my Wife's embroidery scissors (3" overall all length) because they had a point, but let nearly foot long knitting needles through.
*Esbit stove and fuel tabs (Not sure if Esbit tabs are TSA approved) - Tabs are potential fire hazard. Definite no go. Stove, if used, may be prohibited because of fear of tab residue
*SOL mini fishing kit + safety pins - Fishing hooks = potential weapon depending on size.
*Bug spray, sunscreen - Subject to TSA 3-1-1 liquids policy

https://apps.tsa.dhs.gov/mytsa/cib_results.aspx?search=fish%20hook%20(small)