Investors are buying America again with no other choice

The dollar is so back. The U.S. currency — subject to a good deal of bad press for the past year or so — has strengthened in value against other currencies since the Iran war began. Why it matters: It's not that people are falling in love with America again. It's more as if investors are running for safety toward the best option. And, like it or not, that's still the U.S. dollar. The big picture: The spike in oil prices was the catalyst for a major global market disruption that's only beginning