Related by context. Frequent words. (Click for all words.) 66 porous border 56 borders 53 border 45 lawless 43 tribal regions 43 porous 42 illegal migrants 40 smugglers 40 illegal immigration 40 infiltration 39 lawlessness 39 smuggling routes 39 illegals 39 undocumented aliens 38 illegal aliens 38 seaports 38 border crossings 37 drug smugglers 37 Mexican drug cartels 37 transnational 37 extremist groups 37 Mexican cartels 37 undocumented migrants 37 drug cartels 37 infiltrators 36 smuggling 36 traffickers 36 jihadists 36 cartels 36 border crossing 35 criminal gangs 35 borderlands 35 safe havens 35 illegal immigrants 35 insurgency 34 Islamic extremists 34 drug barons 34 drug traffickers 34 sanctuaries 34 illegal alien 34 insurgencies 34 tribal belt 34 Illegals 34 endemic corruption 34 rampant corruption 34 border crossers 34 Somali refugees 34 counternarcotics 34 transshipment 33 frontier 33 extremists 33 Islamic radicals 33 landlocked 33 country 33 smuggled 33 Minuteman Project 33 lax 33 undocumented workers 33 AQIM 33 resurgent Taliban 33 impunity 33 Islamic fundamentalism 33 Somalia 33 security 33 borderless 33 coastlines 32 immigration 32 restive 32 migrants 32 terrorists 32 checkpoints 32 narcotics trafficking 32 Illegal immigration 32 destabilizing 32 money launderers 32 Pakistan lawless tribal 32 homeland security 32 mafias 32 syndicates 32 Insecurity 32 al Qaida offshoot 32 refugee camps 32 Homeland Security 32 endemic 32 criminality 32 unmanned drones 32 deserts 32 frontiers 32 crime syndicates 31 inhospitable 31 narco 31 hinterland 31 Malacca Strait 31 transiting 31 Federally Administered Tribal Areas 31 Illegal immigrants 31 overstretched 31 heavily armed 31 undocumented 31 underdevelopment 31 geo strategic