Have you read this article and do you agree or disagree - Is Washington Next?

COL Mikel J. Burroughs, I believe ISIS sent a message that Washington is next. I highly doubt that. There are larger, more hostile cities they could attack. Down here on the coast, and where one of the largest chemical and refineries are, an attack would be devastating on lives, economy, and parts of the world. An attack on our Port Of Houston and the refineries and chemical plants would be a chain reaction because they are so close together.
See statistics:
QUICK FACTS
Texas was the leading crude oil-producing state in the nation in 2013 and exceeded production levels even from the federal offshore areas.
As of January 2014, the 27 petroleum refineries in Texas had a capacity of over 5.1 million barrels of crude oil per day and accounted for 29% of total U.S. refining capacity.
Texas accounted for about 29% of U.S. marketed natural gas production in 2013, making it the leading natural gas producer among the states.
Texas leads the nation in wind-powered generation capacity with over 12,000 megawatts; in 2013 Texas generated almost 36 million megawatthours of electricity from wind energy.
West Texas Intermediate (WTI), a grade of crude oil produced in Texas and southern Oklahoma, is traded in the domestic spot market at Cushing, Oklahoma, where it serves as a benchmark for oil pricing.
The average annual electricity cost per Texas household is $1,801, among the highest in the nation; the cost is similar to other warm weather states like Florida, according to EIA's Residential Energy Consumption Survey.
Last Updated: March 27, 2014

No COL Mikel J. Burroughs I had not read this article yet - Is Washington Next?
I think New York, Chicago or LA would be next.
Washington has too much protection - internal and external and not nearly enough lucrative human targets. Tysons Corner Mall is a target ISIS would like to hit on Black friday.

As the article states one of the things that makes this enemy particularly challenging is that it fights unconventionally. ISIS used Paris to spread a message of fear and show that they have the ability to attack anywhere. In the words of former President Bush, "Terrorist attacks can shake the foundations of our biggest buildings, but they cannot touch the foundation of America. These acts shatter steel, but they cannot dent the steel of American resolve." We have been attacked before and we could be attacked again, however the enemy's fear-mongering and violence will not undermine our resolve to defeat terrorist threats including ISIS.