Controversy first arose when the French-owned and Montgomery County, Maryland -based Keolis (already operating Virginia Railway Express trains) was the only bidder for the contract. The bidding process was suspended in the fall of 2010 due to lack of competition. Before bidding reopened in 2011, Maryland passed a law (at the request of Leo Bretholz and other Holocaust survivors) requiring Keolis's majority owner, SNCF (currently solely owned by the French government)  to fully disclose its role in transporting Jews to concentration camps during World War II (while SNCF was under control of the Nazi government), to the satisfaction of the Maryland state archivist, before Keolis would be allowed to place a bid for MARC service. Keolis faced similar issues while bidding for VRE operations in 2009, but in the end, they were allowed to run VRE.
The best way to store your Bitcoins is a wallet on your computer or mobile phone as you’ll get a full control over your Bitcoins. A noticeable example of a standalone (desktop) clients is Electrum . Just remember, there are two types of desktop clients, with full validation and simplified one. Full validation requires to download all the “block chain” on your computer, which is very large database (60 GB and growing every 10 minutes) that contains all the transactions ever made using Bitcoin. Full validation in theory provides an extra layer of security and allow merchants to avoid “double spends”. As a normal user, simplified validation works just fine and there is no reason to maintain a complete copy of all ever maid transactions. You are only interested in a small part of the block chain that contains your transactions and it is about 25-30 MB. Online wallets a very popular nowadays as they are easy and quite fast to set-up, don’t require any free space on your HDD and are just convenient, especially when we are talking about relatively small transactions or occasional ones . when you want to transfer you bitcoins from a Bitcoin Exchange to your personal wallet.