Related by context. Frequent words. (Click for all words.) 57 existential threat 50 threat 45 gravest 39 peril 38 threats 38 danger 38 scourge 36 threat posed 36 critical juncture 36 annihilation 36 conundrum 35 defining moment 35 pose threat 35 enemies 35 Achilles heel 35 safest investments 35 dilemma 34 menace 34 greatest 34 deadliest 34 hazard 34 imminent danger 34 challenge 33 formidable foe 33 endangered 33 waging war 33 impediment 32 mortal 32 endangering 32 imperiled 32 challenges 32 fiercest 32 evils 32 inconvenient truth 32 adversaries 32 purest form 32 endanger 32 nuclear arsenal 32 dangers 32 endangerment 32 intractable 31 obliteration 31 bulwark 31 stumbling block 31 ravages 31 quandary 31 problem 31 scourges 31 hazards 31 endangers 31 indivisible 31 traitors 31 superpower 31 paramount importance 31 trump card 31 poses 31 disastrous consequences 31 instability 31 severely weakened 31 paradox 31 bogeyman 31 destabilizing 31 kryptonite 31 enemy 30 extinction 30 nightmare scenario 30 profound implications 30 bastion 30 silver bullet 30 obstacle 30 decimation 30 catastrophic consequences 30 safest 30 lowest ebb 30 Inaction 30 menaces 30 cornerstone 30 affront 30 Great Satan 30 decimate 30 destroy 30 posed 30 inimical 30 toughest 30 nuclear proliferation 30 dangers posed 30 annihilate 29 sine qua non 29 extinct 29 adversary 29 irreparable damage 29 bane 29 concern 29 graver 29 catastrophe 29 pose 29 beatable 29 confronting 29 invincible 29 act decisively 29 irreversible