U.S. tech leaders are urging Washington to halt moves that would further restrict exports of advanced chips to China while top U.S. venture capital firms are questioned over their investments in China. All this happened as former diplomat Henry Kissinger made a surprise visit to China. How are U.S. restrictions on chips export hurting their own businesses? What are the next moves for both sides in the semiconductor industry? And what messages can we glean from the flurry of talks recently between top Chinese and U.S. officials?