Risk of terror attack on US soil rises to alarmingly high level, experts warn

The threat of a major terror event taking place on the U.S. homeland is at a dangerously high level with big cities like New York City and Washington DC most vulnerable to an attack

"We are in a period where a number of factors are combining to make a terrorist attack on the homeland far more likely than it perhaps had been." Michael Dorgan is a writer for Fox News Digital and Fox Business.

Technology has become cheaper and more advanced, the internet is lightning fast and America’s open border means millions of unvetted people from all over the world are now living among the general population and continue to pour in at record rates. You can send tips to michael.dorgan@fox.com and follow him on Twitter @M_Dorgan.