jennifer yachnin, a public lands reporter. if you are in the eastern or central time zone, your line is (202) 748-8000. if you are in mountain or pacific, (202) 748-8001. so what's the difference between a national park or a national monument? guest: the difference is in how they are created. congress has to create a national park. national monuments, they can create that too, but they really don't. there are also national wildlife refuges, wilderness areas, forests. but when it comes to monuments, the president is the primary person who grants those. that's under the 1906 law, so some of the things you have seen over the years, you have seen monuments become parks. the grand canyon was one of the first monuments created back in the early 1900s and of course, is now a national park. host: for the national park service, did they manage national monuments or is there another service to manage the monuments? guest: yes, the national park service does handle the bulk of national monuments, but if you are managed by the bureau of l

jennifer yachnin of e&e news.in the conversation, (202) 748-8000 if you are in the central or eastern time zones, (202) 748-8001 if you are in the mountain or pacific time zones. in about 10 minutes, we will head to the supreme court. the case being argued, a case concerning the justice department's attempt to reinstate the boston marathon bombers death sentence. you can watch the live oral arguments and listen to them online, on c-span.org, and on our new video app, c-span now. back to your phone calls, this is billy, columbus, ohio. you are on with jen yachnin. caller: good morning, how are you doing today? host: doing well. going -- go ahead, billy. caller: hi, my questions are why are gas prices so much cheaper in the south and up north? my second question -- host: well, let's stick with questions about gas prices. why are they different prices around the country? guest: that's a little bit out of my wheelhouse. i am not sure i can give an answer that will be entirely accurate. host: what's in your wheelhouse,

jennifer yachnin, covering public lands for e&e news. we do appreciate your time this morning. guest: great, thank you so much. host: that will do it for us on "the washington journal." we will be back here at 7:00 a.m. eastern, 4:00 a.m. pacific. we will take you live to the supreme court. [captions copyright national cable satellite corp. 2021] >> and the associate justices of the supreme court of the united states. all persons having business before the honorable, the supreme court of the united states are admonished to draw near and give their attention to the court is now sitting. god save the united states and this honorable court. >> we will hear arguments first in case 2443, united states versus tsarnaev. mr. fagan: may please the court. after watching video of responded by himself personally placing a shrapnel bomb before a group of children at the judge. -- the jury recommended capital punishment for that specific deliberate act. the court of appeals should've let that verdict stand. instead it unearthed a previously unmentioned supervisory rule to invalidate the care