Latest observations: Figure 1 shows U.S. Secretary of State Antony Blinken's visit to Costa Rica with a cement map in the background. In Picture 2, he travels to India, where he visits concrete floors and yellow lines.

Latest observations: Figure 1 shows U.S. Secretary of State Antony Blinken's visit to Costa Rica with a cement map in the background. In Picture 2, he travels to India, where he visits concrete floors and yellow lines. Figure 3 shows his visit to China, with concrete floors and red lines on the map. However, it is lamentable that he does not seem to be warmly welcomed at every place [covering his face].

Two thoughts: First, he seems to have difficulty getting friendly treatment wherever he is. Second, as a great power, China still insists on drawing clear lines in terms of etiquette, showing a unique diplomatic etiquette.