- Sen. John Thune, R-S.D.: Because of the reports, there was some limited access on the Capital complex Wednesday morning. Given the reports of suspicious substances and the bombs that went off Monday in Boston, people are taking more precautions and are on high alert, Thune said. But it's easy to overreact, something he warned against. He said it's not uncommon for him to receive notifications about suspicious packages on the Capital complex. The complex can't be closed each time there's a potential problem, he said. The letter headed to Sen. Roger Wicker, R-Mississippi, was caught at an off-site mail facility that was put in place after the 9-11 terrorist attacks, he said.
- Perry Plumart, spokesman for Sen. Tim Johnson, D-S.D.: It's clear there's a heightened sense of security across Washington, and the increased vigilance is appropriate given the events of the past few days, Plumart said. Knowing law enforcers are doing a good job and that there have been thorough inspections of mail is helpful, he said.
The letters with a suspicious substance were detected at a mail-handling facility away from the Capitol and White House, so they never made it to the addressees, Plumart said.
The protocol for handling mail is strict, he said. It was put in place after the 9-11 attacks and has been updated since.
- Rep. Kristi Noem, R-S.D.: "In light of recent events, authorities are on high alert for any suspicious activity and are currently investigating the origins of these letters. All of the mail sent to House and Senate offices in Washington, D.C., first goes through a security screening at a facility not on the Capitol complex. I have not received any word of anything suspicious addressed to any House members."