With militias on the rise, states boost vigilance

"A recent parade of armed Americans flying flags from a pickup truck convoy in Portland “reminded me of the scenes of ISIS mobilizing in armored columns in Mosul,” says Javed Ali, a Michigan-based former senior director for counterterrorism at the National Security Council.

“And I thought, ‘Wow, this is the United States, and yet we’re seeing something that has the iconography of terrorism overseas.’ It’s unprecedented ... and it’s a real sort of challenge: What is the line between protected activity for U.S. citizens and what’s the line into something that looks like terrorism?”"
The differences I see are that the "unidentified" flags were the Stars and Stripes, and the men are wanting to protect the American way of life, not overthrow it, Javed.
TSgt David L., PVT Mark Zehner
SGT James Murphy, CPT Jack Durish,
PO3 Bob McCord, SSG Gordon Holmes,
SGT Carl Blas, COL Mikel J. Burroughs,
SPC Gary Welch, SGT Mark Anderson,
CPL Douglas Chrysler, Maj Marty Hogan,
1SG Steven Imerman, SGT Gregory Lawritson,
MSgt Robert "Rock" Aldi, CW5 Jack Cardwell,
MSgt David Hoffman, SSG Michael Noll,
SPC Nancy Greene, CPL Dave Hoover