1. The US Secret Service has placed a senior supervisor on leave and suspended his security credentials after a female employee accused him of sexual assault, the latest in a string of incidents where agents are accused of breaking the law.
2. Fifty-year CBS News veteran and Face the Nation host Bob Schieffer will retire this summer. The network did not immediately name a replacement. His Sunday morning talk show’s ratings are at a 20-year high, according to some metrics.
3. Sabra Dipping is recalling 30,000 cases of its classic hummus over concerns they could be contaminated with Listeria. An Oklahoma ice cream plant was also shut down over the weekend over Listeria concerns.
4. Long wait times for patients awaiting care at VA hospitals are not improving, according to an Associated Press investigation. In fact, the number of appointments that take 90 days or more has doubled since last summer, according to the AP.
5. 2015 is on pace to become the second-busiest M&A year in history, according to The Wall Street Journal. Just this week, Royal Dutch Shell agreed to buy British energy company BG Group for $70 billion, and drug-maker Mylan bid nearly $30 billion for rival Perrigo.
6. Twitter is testing a revamped search feature on its Web client that gives users more control over how they peruse the platform. The change allows search by account or popularity or by the media contained in tweets, such as photos or videos.
7. Shares of Zynga were down 8% in extended trading on Wednesday after the company said former leader Mark Pincus will return to the company, replacing Don Mattrick as chief executive. One analyst told Reuters that the change sends the "wrong message" about the company.
8. Sen. Rand Paul’s (R-KY) first day on the campaign trail was full of feisty interviews with the media, including lecturing Today host Savannah Guthrie about what questions she should ask. He also sparred with Fox News host Sean Hannity.