UPDATE 11:48 a.m. Twitter says on its status blog: “Users may be experiencing issues accessing Twitter. Our engineers are currently working to resolve the issue.”
- Some Bernie-or-Busters protested Hillary Clinton's DNC speech, but a tightly organized plan — from chants to secret allies — kept heckling off TV.
- Sixteen people are reported dead after a hot air balloon crashed in Texas.
- Two brothers suspected of planning terror attacks have been arrested in Belgium, prosecutors say.