This 'home' danger is just added to those dangers we perceive as 'over there'. We are, for example, after all of this time, still engaged in war in Iraq. Also, we are still in Afghanistan (America's longest war) where war officially ended in 2014, however, thousands of US-led NATO troops remain in the country.
We have deployed US troops to Poland to stand guard on Russia's borders in the biggest military build-up since the Cold War. But with a Trump victory, it seems that we have less of a chance of going to war with Russia... and that's even more true considering Trump's appointment to head the state department, Exxon Mobil CEO Rex Tillerson. Even Henry Kissinger, who prolonged the Viet Nam war for many years, thinks that Tillerson is a good appointment.
On the other hand, it doesn't appear that we have eased up on our hostility toward Iran and we could still come to blows with Russia over our stance against that country.
In fact, the whole Middle East thing is explosive. We just can't seem to do enough to make that situation worse and worse.
We created 'change' in Libya where Muammar Gaddafi was murdered, but the change doesn't seem to have been beneficial for us. And now, we are looking over our shoulder at Turkey.
No doubt we are going to feel compelled to get involved with the al-Shabab attacks in Somalia. And we certainly will not be on the sidelines during the growing civil unrest and ethnic violence in near-by Ethiopia. Also in that region there is a political crisis in Burundi which appears to be growing stronger... eventually we will meddle in that one in a serious manner. Also, there is widespread unrest and violence in Zimbabwe where we will be obliged to intervene.
On the other side of the world, but still within our area of authority there is growing problems and political instability in the Philippines. Ultimately, we are going to have to deal with that as a potential threat. As an aside, we need to keep our eyes on China in the South China Sea. The Philippines thing becomes more important if Duterte doesn't follow our instructions regarding our 'disagreements' with China... one can see 'regime change' on the horizon.
And then, there's political instability in Thailand related to the royal succession. That probably can't be settled without our 'help'.
Of course the political instability in Colombia stemming from a breakdown of the peace agreement with the FARC will require our direct attention. And we haven't gotten the Venezuelan thing right yet, so we can anticipate more attempts at corrections there.
Stepping back from the world allows certain views to come into focus, such as instability in Egypt, organized crime–related violence in Mexico, increased violence in Lebanon and Jordan, regional conflicts and instability in Saudi Arabia, violence in the Central African Republic, and in Myanmar. The list could go on and on.