If a nuclear missile struck Texas, thousands of people would immediately die, and several would after debris reached them or from radiation poisoning. The explosive yield of a nuclear weapon is the amount of energy discharged when a nuclear weapon is detonated. The conversion rate of a nuclear bomb to the area of nuclear yield (impact zone) is one kt of TNT is simply defined to be 1012 calories equivalent. The bomb “Little Boy” dropped on Japan during World War II had 16 kilotons of blast damage and killed between 99,000 and 160,000 in 1945. During Korean Missile testing in 2009, the missile with the highest impact had 8 kilotons.
The population of Texas is 26,059,203 according to the July of 2012 Census Bureau. With a missile with 8 kilotons hitting Dallas (population 1,223,229) the death toll would be around one million with debris, radiation, and death on impact. As the largest exporter of goods in the United States, Texas currently grosses more than $100 billion a year in trade with other nations. In 2011,Texas had a gross state product of $1.332 trillion, the second highest in the U.S. Texas has surpassed $1 trillion in annual economic output. The state gained nearly a full percentage point in its share of the U.S. economy during the decade, reaching 8.3% in 2010.
If a bomb were to hit Texas, there would be zero dollars coming out of Texas and zero trade would be happening. This would greatly affect America and the rest of the world, not only because they would not contribute any money to the economy but also because millions of dollars of aid would go to Texas.